CN108877568A - Visual representation component and motor vehicles - Google Patents

Abstract

The present invention provides a visual identification component (10), comprising an identification pattern (51), the visual identification component (10) comprising a light source component (1), and the light source component (1) is configured to emit light to illuminate the The above logo pattern (51). The invention also provides a motor vehicle including a visual identification assembly. The visual identification component of the present invention provides a higher degree of recognition, and both aesthetic appearance and design freedom are improved.

Description

Visual Signage Components and Motor Vehicles

technical field

The present invention relates to the technical field of identification products, in particular to a visual identification component, especially a visual identification component with a light-emitting function for motor vehicles, such as a light-emitting vehicle logo.

Background technique

Personalized characters, numbers, symbols, graphics, patterns, etc. are shown as a mark in a flat or three-dimensional manner to mark and distinguish target objects or products, or to convey information about target objects or products. Commonly used ways to form a logo include printing, pasting or etching to form a logo pattern in the target area. However, this traditional pattern forming process can no longer meet the increasing product design requirements.

For example, in the automotive industry, car logos play an important role in improving vehicle aesthetics and brand recognition, and the design of car logos has received more and more attention. The traditional car logo design mainly consists in constructing the shape of the car logo through materials, and then producing the difference in brightness or color through an additional process (such as chrome plating process) to form a pattern. However, the traditional car logo does not have a light-emitting function, so the form of the logo is single, the brand recognition is poor, and there is less freedom in design. In addition, in the prior art, the brightness of the bright area formed by the chrome-plated parts is very uneven. There is also a large difference in the brightness perceived by the area, which makes the pattern look very uneven, the boundary between light and dark is unclear, and the logo recognition is not enough.

Simply adding the luminous function to the car logo also faces the problem of uneven brightness, which is related to the projection of the light source on the object. Usually, the light emitted by the light source seen by external observers is uneven. For The brightness of the same part seen from different angles is different, and the brightness of different parts observed from the same angle is also different. Therefore, this will cause the car logo to look unattractive, and even lead to wrong recognition of the logo. It can be seen that adding a light-emitting function to a sign needs to solve the problem of brightness uniformity. In addition, the problem with this design is that the car logo may not be clearly recognized when the lighting function is turned off, because the display of the logo may be light source dependent. If it is too dependent on the light source, then when the light source disappears or When turned off, the car logo cannot produce a strong enough light-dark boundary as when the glow function is turned on, so the car logo will be difficult to recognize.

Contents of the invention

The purpose of the present invention is to overcome the defects of the prior art and provide a visual identification component with a higher degree of recognition.

The purpose of the present invention is also to provide a visual identification component with improved aesthetics and rich design styles.

The purpose of the present invention is also to provide a visual identification component with better display effect when the light emitting function is turned off.

In order to achieve the above-mentioned purpose or one of the purposes, the technical solution of the present invention is as follows:

A visual identification component includes an identification pattern, the visual identification component includes a light source assembly configured to emit light to illuminate the identification pattern.

According to a preferred embodiment of the present invention, the visual identification component further includes a light guide and a light-shielding sheet, wherein the logo pattern is formed in the light-shielding sheet.

According to a preferred embodiment of the present invention, the light guide is configured as a plate-shaped light guide, including a main surface and a side perpendicular to the main surface, and the main surface of the plate-shaped light guide is arranged facing the light-shielding sheet .

According to a preferred embodiment of the present invention, the light source assembly is located at the side of the plate-shaped light guide, and microstructures are provided on the surface of the plate-shaped light guide opposite to the main surface, so that the light emitted by the light source assembly passes through the The side of the plate-shaped light guide enters into the plate-shaped light guide and exits from the main surface in a direction from the main surface of the plate-shaped light guide to the light-shielding sheet.

According to a preferred embodiment of the present invention, the light source assembly is located on the side of the plate-shaped light guide member opposite to the main surface.

According to a preferred embodiment of the present invention, the shading sheet includes a shading mask or an in-mold transfer film.

According to a preferred embodiment of the present invention, the visual identification component further includes a reflector, and the reflector is arranged on a side of the plate-shaped light guide member opposite to the main surface.

According to a preferred embodiment of the present invention, the visual identification component further includes a diffusion sheet, and the diffusion sheet is arranged between the light guide member and the light shielding sheet.

According to a preferred embodiment of the present invention, the diffusion sheet includes a micro-optical structure, or is made of a light-diffusing material, or is configured as a holographic film.

According to a preferred embodiment of the present invention, the visual identification component further includes a cover sheet.

According to a preferred embodiment of the present invention, the cover sheet is formed on a side of the light shielding sheet away from the light guide, or the cover sheet is formed on a side of the light shielding sheet close to the light guide.

According to a preferred embodiment of the present invention, the visual identification assembly further includes a housing for carrying a light source assembly, a light guide and a light shielding sheet.

According to a preferred embodiment of the present invention, the visual identification component further includes a connector and a wire harness.

According to a preferred embodiment of the present invention, the light source assembly includes a printed circuit board and a light source.

According to a preferred embodiment of the present invention, the microstructures are circular grooves or protrusions arranged in an array, or strip-shaped grooves or protrusions arranged in parallel.

According to a preferred embodiment of the present invention, the circular grooves or protrusions have a diameter of 3-20 μm, and the distance between adjacent grooves or protrusions is greater than or equal to the diameter of the grooves or protrusions.

According to a preferred embodiment of the present invention, the strip-shaped grooves or protrusions have a width of 3 μm-5 mm, and there is a gap between adjacent grooves or protrusions that is greater than or equal to the width of the strip-shaped grooves or protrusions. spacing.

According to a preferred embodiment of the present invention, the arrangement density of the microstructures increases as the distance from the light source component increases.

According to a preferred embodiment of the present invention, the microstructure is formed by hot pressing or rolling process.

According to a preferred embodiment of the present invention, the shading cover is formed by a two-color injection molding process.

According to another aspect of the present invention, there is provided a motor vehicle comprising the visual identification assembly according to any one of the preceding embodiments.

According to the visual identification component of the present invention, since the light source component is added to the identification component, the identification pattern can emit light, and the identification thus formed is clearer and has a higher degree of recognition. Advantageously, a plate-shaped light guide with a microstructure is arranged in the sign assembly, whereby the light source assembly can be arranged on the side of the light guide, and through the design of the microstructure of the light guide, the light from the light source assembly can be Enter from the side of the light guide and then lead out from the main surface of the light guide, so that a surface light source with uniform distribution of light can be produced. Further, by constructing the logo pattern in the light-shielding sheet such as the in-mold transfer film, light can be emitted from the light-transmitting area on the light-shielding sheet and blocked by the light-impermeable area, thereby forming a pattern with a very clear boundary between light and dark. According to the present invention, a reflector can be arranged on the back side of the light guide, and a diffusion sheet can be arranged between the light guide and the light-shielding sheet. The holographic film has such a design, and the light irradiated from the light-transmitting area is very uniform.

By adopting the visual identification component of the present invention, when the light source component is turned on, the brightness of the pattern observed from various angles is uniform, thereby ensuring aesthetics. Moreover, the visual identification component of the present invention can be combined with chrome-plating technology to form a light-transmitting area, a non-light-transmitting area and a chrome-plated area, so that a logo pattern with more abundant lighting effects can be designed. Since a series of optical devices are arranged under the cover sheet or the shading sheet, even when the light source assembly is turned off, the visual identification assembly of the present invention can make the desired identification pattern visible under the irradiation of natural light, so it has a better display effect .

Further, the identification component is formed by multiple layers, such as a light guide layer, a light-shielding layer, a reflector layer, a diffusion layer and a cover layer, etc., and the light source component is arranged on the side of the light guide, and the identification component thus obtained Compact structure and small volume.

It can be seen that the present invention can meet the requirements of diverse shapes and enrich the design styles of the vehicle logo LOGO.

Description of drawings

FIG. 1 is a schematic diagram of the principle of a visual identification component according to an embodiment of the present invention;

2 is a schematic diagram illustrating details of a light guide of a visual identification assembly and an optical path in the light guide according to an embodiment of the present invention;

Fig. 3 is an overall schematic diagram of a visual identification assembly according to an embodiment of the present invention, wherein the cover sheet is removed;

Figure 4 is an exploded view of the visual signage assembly shown in Figure 3, optionally without the diffuser; and

Fig. 5 is a cross-sectional view of a visual identification assembly according to an embodiment of the present invention.

Detailed ways

Exemplary embodiments of the present invention will be described in detail below with reference to the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements. In addition, in the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a comprehensive understanding of the embodiments of the present disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in diagrammatic form to simplify the drawings.

According to the general concept of the present invention, there is provided a visual identification assembly including an identification pattern, the visual identification assembly includes a light source assembly configured to emit light to illuminate the identification pattern. In the present invention, the identification pattern includes characters, numbers, symbols, graphics, patterns and other arbitrary types of objects that can be used for identification and recognition. According to the visual identification component of the present invention, since the light source component is added to the identification component, the identification pattern can emit light, and the identification thus formed is clearer and has a higher degree of recognition.

Figure 1 shows a schematic diagram of the principle of a visual identification assembly according to an embodiment of the present invention. As a specific preferred embodiment, as shown in Figure 1, a visual identification assembly 10 includes a light source assembly 1, a reflector 2, and a light guide 3 , a diffusion sheet 4, a light-shielding sheet 5 and a cover sheet 6, wherein the reflector 2, the light guide 3, the diffusion sheet 4, the light-shielding sheet 5 and the cover sheet 6 form a multilayer structure arranged approximately parallel to each other, and the logo pattern 51 is formed on Shade 5.

The light source assembly 1 may include a printed circuit board PCB11 and a light source 12, the light source 12 may be an LED or OLED light source, or may be any other type of light source, the light source assembly 1 is configured to emit light to illuminate the logo pattern 51 . The reflector 2 can be a plane mirror, which can be made of PC material, formed by injection molding and aluminum-plated on the surface. The light guide 3 is configured as a plate-shaped light guide, including a main surface and a side perpendicular to the main surface. It is arranged facing the reflector 2 , facing and parallel to the visor 5 . The light guide 3 can be made of PC material.

It should be noted that the shading sheet 5 can use a shading cover (such as a two-color molded shading cover), or an in-mold transfer film, and the in-mold transfer film is an in-mold transfer technology (In-Mold Decoration, The film formed by IMD, In-Mold Label, IML) has a desired logo pattern formed in the light-shielding sheet 5, for example, includes a light-transmitting area and a non-light-transmitting area in the light-shielding sheet 5, and the logo pattern is formed by the light-shielding area. The cover sheet 6 is a protective layer, for example made of transparent PC material or acrylic material, to protect the identification components; alternatively, the cover sheet 6 can be a lens, for example made of PC or PMMA material. The cover sheet 6 can be formed on the side of the light shielding sheet 5 away from the light guide 3, or the cover sheet 6 can be formed on the side of the light shielding sheet 5 close to the light guide 3, that is, the light shielding sheet 5 can be Located on the inside or outside of the cover sheet 6 , when located on the outside of the cover sheet 6 , the light-shielding sheet 5 can be attached to the cover sheet 6 . Advantageously, an IMD or IML film can be formed on the cover sheet 6 by overmolding, whereby the light shield 5 and the cover sheet 6 can be formed in one piece.

The formation of the shading mask and the in-mold transfer film will be introduced below. Among them, the shading cover can be formed by a two-color injection molding process, that is, firstly inject a transparent part in one mold, and then inject black material such as black material on the formed transparent part in another mold to form an opaque area, thus forming Injection molded parts have light-transmitting parts and light-impermeable parts. For the formation of in-mold transfer film, for example, first, the required ink (to form an opaque area) is printed on the transparent film material by printing technology, and the transparent film material printed with ink Placed in a mold for molding, molding to form the final gobo. Among them, the ink is printed in batches on the coil of the transparent film, and then the coil of the printed ink is progressively entered into the mold for molding, and the ink is transferred to the molded part, and the transparent film It is removed to form a light-shielding sheet, which is IMD; and after printing ink on the transparent film material that has been divided into blocks or dividing the transparent film material coil printed with ink in batches into blocks, the transparent film material The block is placed in a mold for molding, and the ink and transparent film are formed on the molded part to form the final gobo. This method is IML.

The hood or in-mold transfer film can be colored, and its translucent and non-transmissive areas can have various colors, such as black, red, green, to create patterns, and it can also be chrome-plated on the non-transparent areas, By forming a chrome-plated area, it is possible to design a logo pattern with a rich lighting effect. With the help of the color design and chrome design of the light shield or the in-mold transfer film, the entire visual signage assembly can form a well-defined logo pattern even when the light source assembly is turned off. A specific identification effect will be described later with reference to FIG. 5 .

As shown in FIG. 1, the diffusion sheet 4 is arranged between the light guide 3 and the light-shielding sheet 5, and the diffusion sheet 4 may include a micro-optical structure, or be made of a light-diffusing material, or be configured as a holographic film , for example, the diffuser is milky white frosted glass with better light diffusion effect. It should be noted that the diffuser 4 can be omitted to simplify the product structure. The advantage of installing the diffuser 4 is that it can further uniformize the light transmitted through the light guide 3 , thereby making the brightness of the light-transmitting area of the light-shielding sheet 5 very uniform.

Here, the reflector 2 , the light guide 3 , the diffusion sheet 4 , the light shielding sheet 5 and the cover sheet 6 can be configured in any shape such as a circle, a square, a rhombus, etc., depending on the desired display effect.

In a specific embodiment, the light source assembly 1 is located at the side of the plate-shaped light guide, and the microstructure 31 is provided on the surface of the plate-shaped light guide opposite to the main surface, so that the light emitted by the light source assembly 1 passes through the plate The side of the plate-shaped light guide enters into the plate-shaped light guide and exits from the main surface along the direction from the main surface of the plate-shaped light guide to the light-shielding sheet 5, as shown in FIG. 2 . In the embodiment of Fig. 2, the light source 12 adopts LED, which is arranged on the printed circuit board PCB, and the LED is powered by the PCB, and the light emitted by the LED is injected into the light guide from the side of the light guide 3, and the light is captured in The microstructures on the back of the light guide diffuse and propagate towards the main surface, the arrows in FIG. 2 showing the light path 32 . The microstructures 31 are circular grooves or protrusions arranged in an array, or strip-shaped grooves or protrusions arranged in parallel. The circular groove or protrusion has a diameter of 3-20 μm, and there is a distance greater than or equal to the diameter of the groove or protrusion between adjacent grooves or protrusions; alternatively, the strip-shaped groove Or the protrusions have a width of 3 μm-5 mm, and the distance between adjacent grooves or protrusions is greater than or equal to the width of the strip-shaped grooves or protrusions, so as to facilitate the uniform emission of light.

In addition, the designer noticed that if uniformly arranged microstructures are used, the brightness of the light emitted by the part of the light guide near the light source module is greater than the light emitted by the part of the light guide far away from the light source module. Therefore, it is favorable that the arrangement density of the microstructures 31 increases as the distance from the light source component increases. Generally, the microstructure 31 can be formed by hot pressing or rolling process. For the thicker light guide, it is harder, so it is preferred to use the hot pressing process to manufacture. Specifically, the protrusions or grooves corresponding to the grooves or protrusions of the microstructure are formed on the hot pressing punch. The thermal extrusion of the upper and lower punches forms the microstructure 31 in the light guide. For light guides with small thickness and softness, the rolling process is preferred. Specifically, protrusions or grooves corresponding to microstructure grooves or protrusions are formed on the rotating roller, so that the light guides pass through Between two rotating rollers, the microstructure 31 is formed on the light guide by pressing.

Alternatively, the light source assembly 1 may be located on the side of the plate-shaped light guide member opposite to the main surface. In fact, this is shown in the schematic diagrams of the visual identification assembly shown in FIG. 3 and FIG. 4 of the present invention. An indication of the structure. As shown in Figure 3, the light source 12 can be embedded in the reflector 2, so that the light source 12 is located on the back side of the light guide 3 to form a backlighting light source. In such a design, the microstructure of the light guide 3 can be omitted .

The propagation of light in the sign assembly 10 will be briefly described below with reference to FIG. 1 . First, the light emitted by the light source 12 enters the light guide 3, and under the action of the microstructure 31 of the light guide 3 and the reflector 2, the light propagates toward the diffusion sheet 4, and after being diffused by the diffusion sheet 4, a part of the light is blocked The non-light-transmitting area of sheet 5 blocks the return, and part of the light is transmitted through the light-transmitting area of light-shielding sheet 5, and the transmitted light passes through the transparent cover sheet 6, so that the observer in front of the sign assembly 10 can see the light from the light-transmitting area The formed logo pattern.

The visual identification assembly of the present invention is described below by taking the vehicle logo as an example. FIG. 3 shows an overall schematic diagram of the visual identification assembly according to an embodiment of the present invention, wherein the cover is removed. A connector 101, wire harness 102, second connector 103 and housing 104, the first connector 101 is used to connect with the power supply or control device of the vehicle, the second connector 103 is connected with the housing 104 of the identification assembly 10, and the wire harness The two ends of 102 are respectively connected to the first connector 101 and the second connector 103 for transmitting power and control signals. The housing 104 is provided with and carries the aforementioned light source assembly 1, reflector 2, light guide 3, and diffusion sheet 4. Shading sheet 5 and cover sheet 6. A holding portion 105 is provided on the housing 104 for holding the sign assembly 10 on the vehicle housing.

Referring to the exploded view of the visual signage assembly shown in FIG. 4, which optionally does not include a diffuser, in particular, the housing 104, the reflector 2, the light guide 3 and the light shield 5 are all shown as having a substantially circular shape. The housing 104 is provided with a positioning part 108, such as a positioning column, and the housing 104 is provided with a concave receiving groove 109, and the printed circuit board 11 can be accommodated and fixed therein. Vent holes 107 are provided on the bottom surface of the groove 109, and the visual identification assembly of the present invention also includes a breathable film 106, the breathable film 106 includes a central breathable area and a bonding area around the breathable area, and the breathable film 106 passes through the bonding area. It is glued on the bottom surface of the receiving groove 109 so that the air-permeable area is opposite to the air-permeable hole 107 . The breathable membrane is a breathable and waterproof membrane, which is used to prevent dust or water from entering the sign assembly, and at the same time allows heat to be dissipated through the breathable membrane to facilitate cooling.

In the embodiment of FIG. 4 , the light source 12 is configured to include two LED strips, the two LED strips are arranged in a figure-eight arrangement, and the printed circuit board 11 is arranged between the two LED strips. The identified components match. Advantageously, two LED strips are embedded in reflector 2 .

Fig. 5 shows a cross-sectional view of a visual identification assembly according to an embodiment of the present invention. As shown in the figure, the shading sheet 5 is combined with the housing 104 to form a closed structure, and the light source assembly 1, the reflector 2 and the light guide 3 can be seen on the housing 104, because the cover sheet 6 can be arranged on the shading sheet 5 The inner side or the outer side, therefore, in order to be compatible with such a design, the cover sheet 6 is omitted from the illustration, and the cover sheet 6 can be combined with the casing 104 by heat welding.

What needs to be explained in conjunction with FIG. 5 is a specific layout design of the shading sheet 5. Specifically, three different areas are shown on the shading sheet 5, namely, the non-transparent area A, the light-transmitting area B and the chrome-plated area C. , the light is blocked at the non-transparent area A and the chrome-plated area C, so it can only pass through the transparent area B. With the help of the transparent area B, a bright light-emitting pattern can be formed, while in the non-transparent area A can form an opaque The color of the chrome plated area C can reflect light. It can be seen that the visual identification component of the present invention can realize various complex identification patterns by means of the layout of the non-transparent area A, the transparent area B and the chrome-plated area C. It should be noted that the chrome-plated area C here may also be other effect areas, such as wood grain effects.

According to another aspect of the present invention, a motor vehicle is provided, the motor vehicle comprising the visual identification assembly 10 according to any one of the preceding embodiments.

According to the visual identification assembly of the present invention, a plate-shaped light guide with a microstructure is arranged in the identification assembly, thus, the light source assembly can be arranged on the side of the light guide, and through the design of the microstructure of the light guide, the light source from Light from the light source assembly can enter from the side of the light guide and then be exported from the main surface of the light guide, so that a surface light source with uniform distribution of light can be produced. Further, by constructing the logo pattern in the light-shielding sheet such as the in-mold transfer film, light can be emitted from the light-transmitting area on the light-shielding sheet and blocked by the light-impermeable area, thereby forming a pattern with a very clear boundary between light and dark. According to the present invention, a reflector can be arranged on the back side of the light guide, and a diffusion sheet can be arranged between the light guide and the light-shielding sheet. The holographic film has such a design, and the light irradiated from the light-transmitting area is very uniform.

By adopting the visual identification component of the present invention, when the light source component is turned on, the brightness of the pattern observed from various angles is uniform, thereby ensuring aesthetics. Moreover, the visual identification component of the present invention can be combined with chrome-plating technology to form a light-transmitting area, a non-light-transmitting area and a chrome-plated area, so that a logo pattern with more abundant lighting effects can be designed. Since a series of optical devices are arranged under the cover sheet or the shading sheet, even when the light source assembly is turned off, the visual identification assembly of the present invention can make the desired identification pattern visible under the irradiation of natural light, so it has a better display effect .

Further, the identification component is formed by multiple layers, such as a light guide layer, a light-shielding layer, a reflector layer, a diffusion layer or a cover layer, etc., and the light source component is arranged on the side of the light guide, and the identification component thus obtained Compact structure and small volume.

It can be seen that the present invention can meet the requirements of diverse shapes and enrich the design styles of the vehicle logo LOGO.

As a preferred embodiment of the present invention, the reflector 2, the light guide 3, the diffusion sheet 4, the shading sheet 5 and the cover sheet 6 are circular, and their diameters gradually increase in order, so that the reflector 2, the light guide The combination of part 3, diffuser 4, light-shielding plate 5 and cover plate 6 forms a truncated cone, and a reflective film is additionally set on the side of the truncated cone. By setting the reflective film, the light blocked by the non-transparent area of the light-shielding plate 5 can Under the action of the reflective film, it continues to propagate in the optical device of the sign assembly, so it has the opportunity to emit from the light-transmitting area, thereby increasing the light efficiency.

Further, the diffusion sheet 4 may not be flat, but three-dimensionally protruding, correspondingly, the light-shielding sheet 5 is also three-dimensionally protruding, and the light-shielding sheet 5 is attached to the three-dimensional diffusion sheet 4, so that it can be used according to the design requirements of the logo pattern A three-dimensional logo pattern is designed. In addition, the three-dimensional diffusion sheet 4 and the light-shielding sheet 4 may have hollow areas to make the logo pattern more three-dimensional.

In order to prevent the overheating of the sign assembly during operation, heat-conducting silicone grease is provided between the back side of the housing 104 and the car body, and heat dissipation fins and cooling fans are added on the housing 104. The cooling fan communicates with the printed circuit board through wires and connectors. 11 connection, the cooling fan is controlled by the vehicle control unit.

While embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention. The scope of application of the present invention is defined by the appended claims and their equivalents.

List of reference signs:

1 light source assembly

11 printed circuit board

12 light source

2 reflectors

3 light guide

31 Microstructure

32 light paths

4 Diffusers

5 shades

51 logo patterns

6 coverslips

10 Identify components

101 first connector

102 wiring harness

103 Second connector

104 housing

105 Keeping Department

106 breathable membrane

107 ventilation hole

108 Positioning Department

109 Holder

A non-transparent area

B Translucent area

C Chromed area.

Claims (21)

1. A visual identification component (10), comprising a logo pattern (51), characterized in that: the visual identification component (10) comprises a light source component (1), and the light source component (1) is configured to emit light to The identification pattern (51) is irradiated. 2. The visual identification component (10) according to claim 1, characterized in that: the visual identification component (10) further comprises a light guide (3) and a shading sheet (5), wherein the identification pattern (51 ) is formed in the light-shielding sheet (5). 3. The visual identification component (10) according to claim 2, characterized in that: the light guide (3) is configured as a plate-shaped light guide, including a main surface and a side perpendicular to the main surface, and the The main surface of the plate-shaped light guide is arranged facing the light-shielding sheet (5). 4. The visual sign assembly (10) according to claim 3, characterized in that: the light source assembly (1) is located at the side of the plate-shaped light guide, and on the side opposite to the main surface of the plate-shaped light guide Microstructures (31) are provided on the surface, so that the light emitted by the light source assembly (1) enters the plate-shaped light guide from the side of the plate-shaped light guide, and passes from the main surface of the plate-shaped light guide to the light-shielding sheet (5 ) emanates from the principal surface. 5. The visual sign assembly (10) according to Claim 3, characterized in that the light source assembly (1) is located on a side of the plate-shaped light guide member opposite to the main surface. 6. The visual sign assembly (10) according to any one of claims 2-5, characterized in that: the shading sheet (5) comprises a shading cover or an in-mold transfer film. 7. The visual identification component (10) according to any one of claims 3-5, characterized in that: the visual identification component (10) further comprises a reflector (2), and the reflector (2) is arranged On the side opposite to the main surface of the plate-shaped light guide. 8. The visual identification component (10) according to any one of claims 2-5, characterized in that: the visual identification component (10) further comprises a diffusion sheet (4), and the diffusion sheet (4) is arranged Between the light guide (3) and the shade (5). 9. The visual identification component (10) according to claim 8, characterized in that: the diffusion sheet (4) comprises a micro-optical structure, or is made of a light-diffusing material, or is configured as a holographic film. 10. The visual identification component (10) according to any one of claims 2-5, characterized in that: the visual identification component (10) further comprises a cover sheet (6). 11. The visual identification assembly (10) according to claim 10, characterized in that: the cover sheet (6) is formed on the side of the light-shielding sheet (5) away from the light guide (3), or the The cover sheet (6) is formed on the side of the light-shielding sheet (5) close to the light guide (3). 12. The visual identification assembly (10) according to any one of claims 2-5, characterized in that: the visual identification assembly (10) further comprises a housing (104) for carrying the light source assembly (1) , a light guide (3) and a shading sheet (5). 13. The visual identification component (10) according to any one of claims 1-5, characterized in that: the visual identification component (10) further comprises a connector and a wire harness (102). 14. The visual identification component (10) according to any one of claims 1-5, characterized in that: the light source component (1) comprises a printed circuit board (11) and a light source (12). 15. The visual identification component (10) according to claim 4, characterized in that: the microstructures (31) are circular grooves or protrusions arranged in an array, or strip-shaped concaves arranged in parallel Grooves or bumps. 16. The visual identification component (10) according to claim 15, characterized in that: the circular groove or protrusion has a diameter of 3-20 μm, and the distance between adjacent grooves or protrusions is greater than or Pitch equal to the diameter of the groove or protrusion. 17. The visual identification component (10) according to claim 15, characterized in that: the strip-shaped grooves or protrusions have a width of 3 μm-5 mm, and the distance between adjacent grooves or protrusions is greater than or A spacing equal to the width of the bar groove or protrusion. 18. The visual identification component (10) according to any one of claims 15-17, characterized in that: the arrangement density of the microstructures (31) increases with the distance from the light source component (1). increase. 19. The visual identification component (10) according to any one of claims 15-17, characterized in that: the microstructure (31) is formed by hot pressing or rolling process. 20. The visual identification component (10) according to claim 6, characterized in that: the shading cover is formed by a two-color injection molding process. 21. A motor vehicle, characterized in that the motor vehicle comprises a visual identification assembly (10) according to any one of claims 1-20.