Tail lamp module with 3D pattern generation function

Abstract

The utility model discloses a tail lamp module capable of generating a 3D (three-dimensional) pattern, which comprises a double-color lampshade, an auxiliary decorative frame, a main decorative frame, an upper light guide plate, a double-color optical film, a lower light guide plate, an LED (light-emitting diode) plate, a black PC (polycarbonate) shading plate, a main bracket, a driving plate and a lamp shell, the color can be changed according to the requirements of a user, the upper light guide plate and the lower light guide plate change the propagation direction of light rays emitted by the LED plate, the light rays are distributed, the extraction efficiency and performance of the light rays are improved, meanwhile, the light rays are more uniform, glare is reduced, the double-color optical film mixes and shields the light rays passing through the lower light guide plate, and the light ray extraction efficiency is improved. Visible light spots and light ray boundaries are reduced or eliminated, light rays are more uniform and softer, driving safety is ensured, the driving board provides a driving power source for the LED board, and the black PC shading board is used for weakening light reflection so that the influence of stray light on 3D patterns can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile tail lamp modules, in particular to a tail lamp module with 3D pattern generation. Background Technique

[0002] Since the birth of automobiles, tail lamps have been an essential part of driving safety. Moreover, in addition to safety, the importance of styling design has been increasingly emphasized. Before the advent of the LED era, it was quite challenging to use traditional bulbs to achieve the functions of vehicle lamps while maintaining original styling. However, with the development of LED technology, various appearance requirements and innovations in various vehicle lamp manufacturing processes have given rise to a series of optical innovation solutions. Current tail lamps have become increasingly complex, integrating more advanced functions. In addition, due to the trend of digitalization, tail lamp functions have more and more dynamic effects, rather than just simple on and off. Content of the Utility Model

[0003] The purpose of the utility model is to provide a tail lamp module with 3D pattern generation to solve the problems raised in the above background technique.

[0004] To solve the above technical problems, the utility model provides the following technical solutions:

[0005] The tail lamp module includes a two-color lamp cover, a secondary decorative frame, a main decorative frame, an upper light guide plate, a two-color optical film, a lower light guide plate, an LED board, a black PC light-shielding plate, a main bracket, a driving board, and a lamp housing. The secondary decorative frame and the upper light guide plate are positioned and snap-connected. The LED board is fixedly connected to the flanging of the lower light guide plate. The black PC light-shielding plate sequentially passes through the lower light guide plate, the two-color optical film, and the upper light guide plate, and is fixedly connected to the upper light guide plate. The upper light-emitting surface of the upper light guide plate and the lower light-emitting surface of the lower light guide plate both face the secondary decorative frame. The secondary decorative frame and the main bracket are snap-connected. The main decorative frame and the main bracket are fixedly connected. One end of the secondary decorative frame is located between the main decorative frame and the main bracket. The main bracket and the lamp housing are fixedly connected. The driving board is electrically connected to the LED board. The driving board and the lamp housing are fixedly connected. The driving board is located between the secondary decorative frame and the lamp housing. The black PC light-shielding plate is located between the driving board and the secondary decorative frame. The two-color lamp cover and the lamp housing are welded and connected. The two-color lamp cover and the lamp housing wrap the secondary decorative frame, the main decorative frame, the upper light guide plate, the two-color optical film, the lower light guide plate, the LED board, the black PC light-shielding plate, the main bracket, and the driving board.

[0006] The two-color lamp cover enables the tail light module to emit light of two colors, and the color can be changed according to the user's needs. The upper light guide plate and the lower light guide plate change the propagation direction of the light emitted by the LED board, distribute the light, improve the light extraction efficiency and performance, make the light more uniform at the same time, reduce glare. The two-color optical film mixes and blocks the light passing through the lower light guide plate to reduce or eliminate visible light spots and light boundaries, making the light more uniform and soft, ensuring driving safety. The driver board provides driving power for the LED board, and at the same time, the driver board also includes safety functions such as overload protection and short-circuit protection, ensuring the safety and service life of the vehicle lamp. The black PC light-shielding plate is used to weaken the light reflection, thereby reducing the influence of stray light on the 3D stereo pattern.

[0007] Further, the upper light guide plate includes an upper colorless transparent light guide plate and an upper optical microstructure. The upper optical microstructure is fixedly connected to the upper colorless transparent light guide plate. The upper optical microstructure is arranged on the upper light-emitting surface of the upper colorless transparent light guide plate. The upper light-emitting surface of the upper colorless transparent light guide plate is also provided with buckles, positioning ribs, positioning holes and screw holes.

[0008] The upper optical microstructure can change the propagation direction of the light emitted by the LED board, distribute the light, improve the light extraction efficiency and performance, make the light more uniform at the same time, and reduce glare.

[0009] Further, the two-color optical film includes a colorless transparent PC film and a film support. The colorless transparent PC film is clamped and sleeved by the film support. The film support is sprayed with black paint, and the film support is provided with positioning holes.

[0010] The black paint sprayed on the film support is used for the light mixing area at the light incident end and the surrounding light shielding area. The light mixing area will mix the light emitted by the LED board, reduce visible light spots and light boundaries, make the light passing through the two-color optical film more uniform and soft, so as to achieve a better lighting effect and reduce the glare impact on oncoming drivers; the light shielding area can block the propagation of part of the light. By designing the shapes and positions of different light shielding areas, the direction and distribution of the light can be controlled, and at the same time, the glare impact on the drivers of oncoming vehicles can be reduced, greatly improving the safety of night driving.

[0011] Further, the lower light guide plate includes a lower colorless transparent light guide plate and a lower optical microstructure. The lower optical microstructure is fixedly connected to the lower colorless transparent light guide plate. The lower optical microstructure is arranged on the lower light-emitting surface of the lower colorless transparent light guide plate. The circumference of the lower colorless transparent light guide plate is provided with positioning holes. The lower colorless transparent light guide plate is provided with LED board positioning ribs and thermal riveting posts on the flange. The thermal riveting posts on the flange of the lower colorless transparent light guide plate pass through the LED board.

[0012] The lower-layer optical microstructure can change the propagation direction of the light emitted by the LED board, distribute the light, improve the light extraction efficiency and performance, make the light more uniform, and reduce glare.

[0013] Further, there are four LED boards in total. Upper-layer LED blocks and lower-layer LED blocks are arranged on the four LED boards. Both the upper-layer LED blocks and the lower-layer LED blocks are composed of LEDs. The positions of the upper-layer LEDs and the lower-layer LEDs correspond to the upper light guide plate and the lower light guide plate respectively.

[0014] Further, each LED is individually controlled by software.

[0015] At the same time, upper-layer LED blocks and lower-layer LED blocks are respectively arranged corresponding to the upper light guide plate and the lower light guide plate. By individually controlling each LED with software, the individual lighting of a certain light-emitting surface on the upper layer, the individual lighting of a certain light-emitting surface on the lower layer, and the overlapping lighting of the upper and lower light-emitting surfaces can be realized, so as to realize a 3D stereoscopic pattern. In addition, the LED current can also be controlled to achieve the alternation of light and darkness of the upper and lower light-emitting surfaces, so as to realize the starry sky lighting effect. At the same time, different lighting areas can realize variable position lights or brake lights when driving.

[0016] Further, the black PC light-shielding plate has leather grains. Positioning ribs are provided on the black PC light-shielding plate. The positioning ribs on the black PC light-shielding plate sequentially pass through the lower light guide plate, the dual-color optical film and the upper light guide plate for positioning.

[0017] The leather grains are used to weaken the reflection of light, thereby reducing the influence of stray light on the 3D stereoscopic pattern. The phase relationship among the black PC light-shielding plate, the lower light guide plate, the dual-color optical film and the upper light guide plate ensures the effect after the generation of the 3D stereoscopic pattern, making the light more uniform and soft.

[0018] Compared with the prior art, the beneficial effects achieved by the utility model are as follows: When the utility model is working, the driving board provides power for the LED board. Each LED on the upper LED block and the lower LED block of the LED board is individually controlled by software to achieve the individual lighting of a certain light-emitting surface on the upper layer, the individual lighting of a certain light-emitting surface on the lower layer, and the overlapping lighting of the light-emitting surfaces on the upper and lower layers, so as to realize a 3D stereoscopic pattern. At the same time, the LED current can also be controlled to achieve the bright and dark alternation of the light-emitting surfaces on the upper and lower layers, so as to realize the starry sky lighting effect. The upper optical microstructure and the lower optical microstructure can change the propagation direction of the light emitted by the LED board, distribute the light, improve the light extraction efficiency and performance, make the light more uniform, reduce glare. The two-color optical film sheet mixes and blocks the light to reduce or eliminate visible light spots and light boundaries, making the light more uniform and soft, ensuring driving safety. The black PC light-shielding board is used to weaken the light reflection, thereby reducing the influence of stray light on the 3D stereoscopic pattern and ensuring the presentation effect of the 3D stereoscopic pattern. At the same time, different lighting areas of the utility model can realize variable position lights or brake lights when driving. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the utility model, and constitute a part of the specification. They are used together with the embodiments of the utility model to explain the utility model, and do not constitute a limitation to the utility model. In the drawings:

[0020] Figure 1 is a schematic diagram of the overall part structure of the utility model;

[0021] Figure 2 is a schematic diagram of the upper light guide plate structure of the utility model;

[0022] Figure 3 is a schematic diagram of the lower light guide plate structure of the utility model;

[0023] Figure 4 is a schematic diagram of the driving board structure of the utility model;

[0024] Figure 5 is a schematic cross-sectional view of the overall structure of the utility model;

[0025] In the figure: 1 - two-color lamp shade, 2 - secondary decorative frame, 3 - main decorative frame, 4 - upper light guide plate, 5 - two-color optical film sheet, 6 - lower light guide plate, 7 - LED board, 8 - black PC light-shielding board, 9 - main bracket, 10 - driving board, 11 - lamp housing, 41 - upper colorless transparent light guide plate, 42 - upper optical microstructure, 51 - colorless transparent PC film sheet, 52 - film sheet bracket, 61 - lower colorless transparent light guide plate, 62 - lower optical microstructure, 71 - upper LED block, 72 - lower LED block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0027] The present utility model provides the following technical solutions:

[0028] As Figure 1 、 Figure 4 and Figure 5 shown, the taillight module includes a two-color lamp cover 1, a secondary decorative frame 2, a main decorative frame 3, an upper light guide plate 4, a two-color optical film 5, a lower light guide plate 6, an LED board 7, a black PC light shielding plate 8, a main bracket 9, a driving board 10, and a lamp housing 11. The secondary decorative frame 2 and the upper light guide plate 4 are positioned and snap-connected. The LED board 7 is fixedly connected to the flanging of the lower light guide plate 6. The black PC light shielding plate 8 sequentially passes through the lower light guide plate 6, the two-color optical film 5, and the upper light guide plate 4, and the black PC light shielding plate 8 is fixedly connected to the upper light guide plate 4. The upper light emitting surface of the upper light guide plate 4 and the lower light emitting surface of the lower light guide plate 6 both face the secondary decorative frame 2. The secondary decorative frame 2 and the main bracket 9 are snap-connected. The main decorative frame 3 and the main bracket 9 are fixedly connected. One end of the secondary decorative frame 2 is located between the main decorative frame 3 and the main bracket 9. The main bracket 9 and the lamp housing 11 are fixedly connected. The driving board 10 and the LED board 7 are electrically connected. The driving board 10 and the lamp housing 11 are fixedly connected. The driving board 10 is located between the secondary decorative frame 2 and the lamp housing 11. The black PC light shielding plate 8 is located between the driving board 10 and the secondary decorative frame 2. The two-color lamp cover 1 and the lamp housing 11 are welded and connected. The two-color lamp cover 1 and the lamp housing 11 enclose the secondary decorative frame 2, the main decorative frame 3, the upper light guide plate 4, the two-color optical film 5, the lower light guide plate 6, the LED board 7, the black PC light shielding plate 8, the main bracket 9, and the driving board 10.

[0029] The two-color lamp cover 1 enables the tail light module to emit light of two colors, and the color can be changed according to the user's needs. The upper light guide plate 4 and the lower light guide plate 6 change the propagation direction of the light emitted by the LED board 7, distribute the light, improve the light extraction efficiency and performance, make the light more uniform at the same time, reduce glare. The two-color optical film 5 mixes and blocks the light passing through the lower light guide plate 6 to reduce or eliminate visible light spots and light boundaries, make the light more uniform and soft, and ensure driving safety. The drive board 10 provides driving power for the LED board 7, and at the same time, the drive board 10 also includes safety functions such as overload protection and short-circuit protection to ensure the safety and service life of the vehicle lamp. The black PC light-shielding plate 8 is used to weaken the light reflection and thus reduce the influence of stray light on the 3D stereo pattern.

[0030] As Figure 2 shown, the upper light guide plate 4 includes an upper colorless transparent light guide plate 41 and an upper optical microstructure 42. The upper optical microstructure 42 and the upper colorless transparent light guide plate 41 are fixedly connected. The upper optical microstructure 42 is arranged on the upper light-emitting surface of the upper colorless transparent light guide plate 41. The upper light-emitting surface of the upper colorless transparent light guide plate 41 is also provided with buckles, positioning ribs, positioning holes and screw holes.

[0031] The upper optical microstructure 42 can change the propagation direction of the light emitted by the LED board 7, distribute the light, improve the light extraction efficiency and performance, make the light more uniform at the same time, and reduce glare.

[0032] As Figure 1 shown, the two-color optical film 5 includes a colorless transparent PC film 51 and a film support 52. The colorless transparent PC film 51 is clamped and sleeved by the film support 52. The film support 52 is sprayed with black paint, and the film support 52 is provided with positioning holes.

[0033] The black paint sprayed on the film support 52 is used for the light mixing area at the light incident end and the surrounding light shielding area. The light mixing area will mix the light emitted by the LED board 7, reduce visible light spots and light boundaries, make the light passing through the two-color optical film 5 more uniform and soft, so as to achieve a better lighting effect and reduce the glare impact on oncoming drivers; the light shielding area can block the propagation of part of the light. By designing the shapes and positions of different light shielding areas, the direction and distribution of the light can be controlled, and at the same time, the glare impact on the drivers of oncoming vehicles can be reduced, greatly improving the safety of night driving.

[0034] As Figure 3As shown, the lower light guide plate 6 includes a lower colorless transparent light guide plate 61 and a lower optical microstructure 62. The lower optical microstructure 62 is fixedly connected to the lower colorless transparent light guide plate 61. The lower optical microstructure 62 is disposed on the lower light-emitting surface of the lower colorless transparent light guide plate 61. The lower colorless transparent light guide plate 61 is provided with positioning holes around its circumference. LED board positioning ribs and thermal riveting posts are provided on the flange of the lower colorless transparent light guide plate 61. The thermal riveting posts on the flange of the lower colorless transparent light guide plate 61 pass through the LED board 7.

[0035] The lower optical microstructure 62 can change the propagation direction of the light emitted by the LED board 7, distribute the light, improve the light extraction efficiency and performance, and at the same time make the light more uniform and reduce glare.

[0036] As Figure 1 and Figure 5 As shown, there are a total of four LED boards 7. Upper LED blocks 71 and lower LED blocks 72 are provided on the four LED boards 7. Both the upper LED blocks 71 and the lower LED blocks 72 are composed of LEDs. The positions of the upper LED blocks 71 and the lower LED blocks 72 correspond to the upper light guide plate 4 and the lower light guide plate 6 respectively.

[0037] Each LED is individually controlled by software.

[0038] At the same time, the upper LED blocks 71 and the lower LED blocks 72 are respectively arranged corresponding to the upper light guide plate 4 and the lower light guide plate 6. Each LED is individually controlled by software to achieve the individual lighting of a certain light-emitting surface on the upper layer, the individual lighting of a certain light-emitting surface on the lower layer, and the overlapping lighting of the upper and lower light-emitting surfaces, so as to achieve a 3D stereoscopic pattern. In addition, the LED current can also be controlled to achieve the alternating brightness of the upper and lower light-emitting surfaces, so as to achieve the starry sky lighting effect. At the same time, different lighting areas during driving can achieve variable position lights or brake lights.

[0039] The black PC light-shielding plate 8 is provided with leather grains. Positioning ribs are provided on the black PC light-shielding plate 8. The positioning ribs on the black PC light-shielding plate 8 sequentially pass through the lower light guide plate 6, the two-color optical film 5, and the upper light guide plate 4.

[0040] The leather grains are used to weaken the reflection of light, thereby reducing the influence of stray light on the 3D stereoscopic pattern. The phase relationship between the black PC light-shielding plate 8, the lower light guide plate 6, the two-color optical film 5, and the upper light guide plate 4 ensures the effect after the generation of the 3D stereoscopic pattern, making the light more uniform and soft.

[0041] Working principle of the present utility model: When the present utility model is working, the driving board 10 provides power for the LED board 7. Each LED on the upper-layer LED block 71 and the lower-layer LED block 72 of the LED board 7 is individually controlled by software to achieve the individual lighting of a certain light-emitting surface on the upper layer, the individual lighting of a certain light-emitting surface on the lower layer, and the overlapping lighting of the upper and lower light-emitting surfaces, thereby realizing a 3D stereoscopic pattern; at the same time, the LED current can also be controlled to achieve the brightness alternation of the upper and lower light-emitting surfaces, thereby realizing the starry sky lighting effect. The upper-layer optical microstructure 42 and the lower-layer optical microstructure 62 can change the propagation direction of the light emitted by the LED board 7, distribute the light, improve the light extraction efficiency and performance, make the light more uniform, reduce glare. The two-color optical film 5 mixes and blocks the light to reduce or eliminate visible light spots and light boundaries, making the light more uniform and soft, ensuring driving safety. The black PC light-shielding board 8 is used to weaken the light reflection, thereby reducing the influence of stray light on the 3D stereoscopic pattern and ensuring the presentation effect of the 3D stereoscopic pattern. At the same time, different lighting areas of the present utility model can realize variable position lights or brake lights when driving.

[0042] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0043] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A taillight module with 3D pattern generation, characterized in that: The taillight module comprises a two-color lampshade (1), a secondary decorative frame (2), a main decorative frame (3), an upper light guide plate (4), a two-color optical film (5), a lower light guide plate (6), an LED board (7), a black PC shading plate (8), a main bracket (9), a driving board (10), and a lamp housing (11); the secondary decorative frame (2) and the upper light guide plate (4) are positioned and clamped; the LED board (7) and the flange of the lower light guide plate (6) are fixedly connected; the black PC shading plate (8) passes through the lower light guide plate (6), the two-color optical film (5), and the upper light guide plate (4) in sequence; the black PC shading plate (8) and the upper light guide plate (4) are fixedly connected; the upper light emitting surface of the upper light guide plate (4) and the lower light emitting surface of the lower light guide plate (6) both face the secondary decorative frame (2); the secondary decorative frame (2) and the main bracket (9) are clamped; the main decorative frame The main decorative frame (3) is fixedly connected to the main bracket (9), one end of the auxiliary decorative frame (2) is located between the main decorative frame (3) and the main bracket (9), the main bracket (9) is fixedly connected to the lamp housing (11), the driving board (10) is electrically connected to the LED board (7), the driving board (10) and the lamp housing (11) are fixedly connected, the driving board (10) is located between the auxiliary decorative frame (2) and the lamp housing (11), the black PC shading plate (8) is located between the driving board (10) and the auxiliary decorative frame (2), the two-color lampshade (1) and the lamp housing (11) are welded, and the two-color lampshade (1) and the lamp housing (11) enclose the auxiliary decorative frame (2), the main decorative frame (3), the upper light guide plate (4), the two-color optical film (5), the lower light guide plate (6), the LED board (7), the black PC shading plate (8), the main bracket (9) and the driving board (10).

2. The taillight module with 3D pattern generation according to claim 1, characterized in that: The upper light guide plate (4) comprises an upper colorless transparent light guide plate (41) and an upper optical microstructure (42); the upper optical microstructure (42) and the upper colorless transparent light guide plate (41) are fixedly connected; the upper optical microstructure (42) is arranged on the upper light-emitting surface of the upper colorless transparent light guide plate (41); and the upper light-emitting surface of the upper colorless transparent light guide plate (41) is also provided with buckles, positioning ribs, positioning holes and screw holes.

3. The taillight module with 3D pattern generation according to claim 2, characterized in that: The two-color optical film (5) comprises a colorless transparent PC film (51) and a film support (52); the colorless transparent PC film (51) is clamped and sleeved by the film support (52); the film support (52) is sprayed with black paint; and a positioning hole is provided on the film support (52).

4. The taillight module with 3D pattern generation according to claim 3, characterized in that: The lower light guide plate (6) comprises a lower colorless transparent light guide plate (61) and a lower optical microstructure (62); the lower optical microstructure (62) and the lower colorless transparent light guide plate (61) are fixedly connected; the lower optical microstructure (62) is arranged on the lower light-emitting surface of the lower colorless transparent light guide plate (61); positioning holes are arranged around the lower colorless transparent light guide plate (61); LED board positioning ribs and heat-riveted columns are arranged on the flange of the lower colorless transparent light guide plate (61); and the heat-riveted columns on the flange of the lower colorless transparent light guide plate (61) pass through the LED board (7).

5. The taillight module with 3D pattern generation according to claim 4, characterized in that: There are four LED boards (7) in total. The four LED boards (7) are provided with upper LED blocks (71) and lower LED blocks (72). The upper LED blocks (71) and lower LED blocks (72) are both composed of LEDs. The positions of the upper LED blocks (71) and lower LED blocks (72) correspond to the upper light guide plate (4) and the lower light guide plate (6), respectively.

6. The taillight module with 3D pattern generation according to claim 5, characterized in that: Each of the LEDs is individually controlled by software.

7. The taillight module with 3D pattern generation according to claim 1, characterized in that: The black PC light shielding plate (8) is provided with leather grains, and the black PC light shielding plate (8) is provided with positioning ribs, and the positioning ribs on the black PC light shielding plate (8) are positioned and pass through the lower light guide plate (6), the two-color optical film (5) and the upper light guide plate (4) in sequence.

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