A side-emitting light-guiding and brightening structure

Abstract

The utility model relates to the field of lamps, and in particular to a side-emitting light-guiding brightening structure, comprising a shell, a light guide plate and a lamp board, wherein a light-emitting surface is provided on one side of the shell, the light guide plate and the lamp board are arranged in the shell, the light guide plate is opposite to the light-emitting surface, and the lamp board is opposite to the light guide plate; a first brightness enhancing film and a second brightness enhancing film are sequentially provided on the side of the light guide plate opposite to the light-emitting surface, the first brightness enhancing film is a 0-degree brightening film, and the second brightness enhancing film is a 90-degree brightening film; the brightening effect is improved by designing a combination of the first brightness enhancing film and the second brightness enhancing film on the light-emitting surface of the light guide plate, thereby reducing the number of LED designs on the corresponding lamp board, and reducing the number of LEDs also makes it easier to pass the debugging of the brightness uniformity of a single product; by designing brightness enhancing films at different angles, the angle at which light passes can be better changed, so that the line light source is converted into a surface light source, thereby ensuring the uniformity and brightness of the light emission.

Description

Technical Field

[0001] The utility model relates to the field of lamps, in particular to a side-emitting light-guiding and brightening structure. Background Art

[0002] Current automotive B-pillar lamps are generally designed with a light-guiding structure composed of multiple side-emitting light sources. However, the light-guiding structure composed of multiple side-emitting light sources requires more LEDs, and the luminous performance of each LED cannot be accurately maintained consistent. The product brightness uniformity pass rate is low, and repeated debugging is required to ensure the product brightness uniformity performance. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a side-emitting light-guiding and brightening structure which can reduce the use of LEDs and ensure the brightness of lamps.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a side-emitting light guide brightening structure, including a shell, a light guide plate and a light board, a light-emitting surface is provided on one side of the shell, the light guide plate and the light board are arranged in the shell, the light guide plate is opposite to the light-emitting surface, and the light board is opposite to the light guide plate; a first brightness enhancing film and a second brightness enhancing film are sequentially provided on the side of the light guide plate opposite to the light-emitting surface, the first brightness enhancing film is a 0-degree brightening film, and the second brightening film is a 90-degree brightening film.

[0005] Furthermore, it also includes a circuit board, which is arranged in the shell and connected to the light board.

[0006] Furthermore, the circuit board is arranged on a side of the light guide plate away from the light emitting surface, and the light board is arranged on the lower side of the light guide plate.

[0007] Furthermore, a reflective film is provided on a surface of the light guide plate away from the light emitting surface.

[0008] Furthermore, the lamp board is a flexible row, and aluminum reinforcement is connected between the circuit board and the lamp board.

[0009] Furthermore, a plurality of light-guiding protrusions are arranged at intervals on a side of the light guide plate opposite to the light board.

[0010] Furthermore, a plurality of light guide grooves are provided on a side of the light guide plate opposite to the reflective film.

[0011] Furthermore, the light guide plate has a positioning block extending toward the lamp board, and the lamp board is provided with a positioning groove corresponding to the positioning block and connected thereto.

[0012] Furthermore, the circuit board, the light guide plate, the first brightness enhancement film and the second brightness enhancement film are stacked and connected by bolts.

[0013] The beneficial effects of the utility model are as follows: by designing a combination of a first brightening film and a second brightening film on the light-emitting surface of the light guide plate, the brightening effect is improved, thereby reducing the number of LED designs on the corresponding lamp board, and reducing the number of LEDs also makes it easier to adjust the brightness uniformity of a single product to meet the requirements; by designing brightening films at different angles, the angle at which light passes can be better changed, so that the line light source is converted into a surface light source, thereby ensuring the uniformity and brightness of the light. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a side-emitting light-guiding and brightening structure according to a specific embodiment of the utility model;

[0015] Figure 2 This is a schematic structural diagram of a side-emitting light-guiding and brightening structure of a specific embodiment of the utility model after removing the shell;

[0016] Figure 3 It is a structural schematic diagram of another viewing angle of the side-emitting light-guiding and brightening structure of the specific embodiment of the utility model after the shell is removed;

[0017] Figure 4 It is a schematic structural diagram of the first brightness enhancement film, the second brightness enhancement film, the light guide plate and the reflective film of the side-emitting light guide brightness enhancement structure of the specific embodiment of the utility model when they are coordinated;

[0018] Figure 5 It is a structural schematic diagram of a light guide groove of a light guide plate with a side-emitting light guide brightness enhancement structure according to a specific implementation of the utility model.

[0019] Description of labels:

[0020] 1. Shell; 11. Light-emitting surface; 2. Light guide plate; 21. Light guide protrusion; 22. Light guide groove; 3. Light board; 4. Circuit board; 5. Aluminum reinforcement; 6. First brightness enhancement film; 7. Second brightness enhancement film; 8. Reflective film. DETAILED DESCRIPTION

[0021] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0022] Please refer to Figures 1 to 5 A side-emitting light guide brightening structure comprises a shell 1, a light guide plate 2 and a light board 3. A light-emitting surface 11 is provided on one side of the shell 1. The light guide plate 2 and the light board 3 are arranged in the shell 1. The light guide plate 2 is opposite to the light-emitting surface 11, and the light board 3 is opposite to the light guide plate 2. A first brightness enhancing film 6 and a second brightness enhancing film 7 are sequentially provided on the side of the light guide plate 2 opposite to the light-emitting surface 11. The first brightness enhancing film 6 is a 0-degree brightness enhancing film, and the second brightness enhancing film 7 is a 90-degree brightness enhancing film.

[0023] From the above description, it can be seen that the beneficial effects of the present invention are: by designing a combination of a first brightening film 6 and a second brightening film 7 on the light-emitting surface 11 of the light guide plate 2, the brightening effect is improved, thereby reducing the number of LED designs on the corresponding lamp board 3, and reducing the number of LEDs also makes it easier to debug the brightness uniformity of a single product; by designing brightening films at different angles, the angle of light passing through can be better changed, so that the line light source is converted into a surface light source, thereby ensuring the uniformity and brightness of the light.

[0024] Furthermore, it also includes a circuit board 4, which is arranged in the housing 1 and connected to the light board 3.

[0025] It can be seen from the above description that the light emission of the lamp board 3 is controlled by the circuit board 4 .

[0026] Furthermore, the circuit board 4 is arranged on a side of the light guide plate 2 away from the light emitting surface 11 , and the light board 3 is arranged on a lower side of the light guide plate 2 .

[0027] From the above description, it can be seen that by arranging components in multiple directions on the light guide plate 2 through the circuit board 4 and the lamp board 3, the installation position is reasonably designed to avoid designing multiple components on the same installation surface, resulting in a single product size that is too large, affecting its subsequent installation arrangement.

[0028] Furthermore, a reflective film 8 is provided on a surface of the light guide plate 2 away from the light emitting surface 11 .

[0029] From the above description, it can be seen that the design of the reflective film 8 will reflect the light emitted by the lamp board 3 that fails to be emitted from the light-emitting surface 11 to the light-emitting surface 11, ensuring that all light can be emitted from the light-emitting surface 11 evenly and accurately, thereby ensuring the luminous brightness and brightness uniformity of the product.

[0030] Furthermore, the lamp board 3 is a flexible row, and an aluminum reinforcement 5 is connected between the circuit board 4 and the lamp board 3 .

[0031] It can be seen from the above description that the lamp board 3 is connected and reinforced by the aluminum reinforcement 5 , and the aluminum reinforcement 5 also serves as a circuit connection component to electrically connect the circuit board 4 and the lamp board 3 .

[0032] Furthermore, a plurality of light guide protrusions 21 are arranged at intervals on one side of the light guide plate 2 opposite to the light board 3 .

[0033] It can be seen from the above description that, through the design of the light-guiding protrusion 21 , it can act as an optical tooth to accurately guide the light emitted by the lamp board 3 into the interior of the light guide plate 2 , and finally emit it at the light-emitting surface 11 .

[0034] Furthermore, a plurality of light guide grooves 22 are provided on a side of the light guide plate 2 opposite to the reflective film 8 .

[0035] It can be seen from the above description that the design of the light guide groove 22 on the light guide plate 2 can evenly diffuse the light reflected by the reflective film 8 and improve the brightness uniformity of the reflected light after passing through.

[0036] Furthermore, the light guide plate 2 has a positioning block extending toward the lamp board 3 , and the lamp board 3 is provided with a positioning groove corresponding to the positioning block and connected thereto.

[0037] It can be seen from the above description that the arrangement of the positioning blocks of the light guide plate 2 and the positioning grooves of the lamp board 3 ensures that both can be quickly installed and fixed.

[0038] Furthermore, the circuit board 4, the light guide plate 2, the first brightness enhancement film 6 and the second brightness enhancement film 7 are stacked and connected by bolts.

[0039] It can be seen from the above description that the circuit board 4, the light guide plate 2, the first brightness enhancement film 6 and the second brightness enhancement film 7 are connected and fixed by bolts.

[0040] Embodiment 1:

[0041] Application scenarios: Current automotive B-pillar lamps are generally designed with a light-guiding structure composed of multiple side-emitting light sources. However, the light-guiding structure with multiple side-emitting light sources requires more LEDs, and the luminous performance of each LED cannot be accurately maintained consistent. The product brightness uniformity pass rate is low, and repeated debugging is required to ensure the product brightness uniformity performance.

[0042] like Figures 1 to 5 As shown, the side-emitting light-guiding brightness enhancement structure of this embodiment includes a housing 1, a light guide plate 2, a light board 3 and a circuit board 4.

[0043] like Figures 1 to 3 As shown, a light emitting surface 11 is provided on one side of the housing 1 , and the light guide plate 2 , the light board 3 and the circuit board 4 are arranged inside the housing 1 .

[0044] like Figure 1 , Figure 2 and Figure 4 As shown, the light guide plate 2 is opposite to the light emitting surface 11, the circuit board 4 is arranged on the side of the light guide plate 2 away from the light emitting surface 11, the lamp board 3 is arranged on the lower side of the light guide plate 2, and a plurality of light guide protrusions 21 are arranged at intervals on the side of the light guide plate 2 opposite to the lamp board 3.

[0045] like Figure 2 As shown, in the matching design between the lamp board 3 and the light guide plate 2, the light guide plate 2 has a positioning block extending toward the lamp board 3, and the lamp board 3 is provided with a positioning groove corresponding to the positioning block and connected thereto.

[0046] like Figure 3 As shown, in this embodiment, the lamp board 3 is a flexible row, and an aluminum reinforcement 5 is connected between the circuit board 4 and the flexible row.

[0047] like Figure 2 and Figure 4 As shown, the light guide plate 2 is provided with a first brightness enhancement film 6 and a second brightness enhancement film 7 in sequence on the side opposite to the light emitting surface 11, the first brightness enhancement film 6 is a 0 degree brightness enhancement film, the second brightness enhancement film 7 is a 90 degree brightness enhancement film, and the light guide plate 2 is provided with a plurality of light guide grooves 22 on the side away from the light emitting surface 11 and is attached with a reflective film 8.

[0048] The circuit board 4 , the reflective film 8 , the light guide plate 2 , the first brightness enhancement film 6 and the second brightness enhancement film 7 are stacked and connected by bolts.

[0049] In summary, the side-emitting light guide brightening structure provided by the utility model realizes the improvement of the brightening effect by designing a combination of a first brightening film and a second brightening film on the light-emitting surface of the light guide plate, thereby reducing the number of LED designs on the corresponding lamp board, and reducing the number of LEDs also makes it easier to adjust the brightness uniformity of a single product to meet the requirements; by designing brightening films at different angles, it is possible to better change the angle at which light passes, thereby converting a line light source into a surface light source, thereby ensuring the uniformity and brightness of the light.

[0050] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A side-emitting light-guiding and brightening structure, characterized in that: It includes a shell, a light guide plate and a light board, a light-emitting surface is provided on one side of the shell, the light guide plate and the light board are arranged in the shell, the light guide plate is opposite to the light-emitting surface, and the light board is opposite to the light guide plate; a first brightness enhancement film and a second brightness enhancement film are sequentially provided on the side of the light guide plate opposite to the light-emitting surface, the first brightness enhancement film is a 0-degree brightness enhancement film, and the second brightness enhancement film is a 90-degree brightness enhancement film.

2. The side-emitting light-guiding and brightening structure according to claim 1, characterized in that: It also includes a circuit board, which is arranged in the shell and connected to the light board.

3. The side-emitting light-guiding and brightening structure according to claim 2, characterized in that: The circuit board is arranged on a side of the light guide plate away from the light emitting surface, and the lamp board is arranged on the lower side of the light guide plate.

4. The side-emitting light-guiding and brightening structure according to claim 3, characterized in that: A reflective film is disposed on a surface of the light guide plate away from the light emitting surface.

5. The side-emitting light-guiding and brightening structure according to claim 2, characterized in that: The lamp board is a flexible row, and aluminum reinforcement is connected between the circuit board and the lamp board.

6. The side-emitting light-guiding and brightening structure according to claim 1, characterized in that: A plurality of light-guiding protrusions are arranged at intervals on one side of the light-guiding plate opposite to the light board.

7. The side-emitting light-guiding and brightness-enhancing structure according to claim 4, characterized in that: A side of the light guide plate opposite to the reflective film is provided with a plurality of light guide grooves.

8. The side-emitting light-guiding and brightness-enhancing structure according to claim 1, characterized in that: The light guide plate is provided with a positioning block extending toward the lamp board, and the lamp board is provided with a positioning groove corresponding to the positioning block and connected with the positioning block.

9. The side-emitting light-guiding and brightness-enhancing structure according to claim 3, characterized in that: The circuit board, the light guide plate, the first brightness enhancement film and the second brightness enhancement film are stacked and connected by bolts.

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