Rhombic backlight source

By using a diamond-shaped backlight design and combining reflective and light-transmitting areas, the problem of uneven brightness on motorcycle dashboards is solved, achieving uniform light distribution and improving dashboard readability and riding safety.

CN223609968UActive Publication Date: 2025-11-28NANJING DIHUA PHOTOELECTRIC
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Patent Information

Application Number
CN202520295804.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-24
Publication Date
2025-11-28
Estimated Expiration
2035-02-24

AI Technical Summary

Technical Problem

Existing backlights have uneven brightness on motorcycle dashboards, which can affect riding safety, especially in environments with light interference.

Method used

The design employs a diamond-shaped backlight, with reflective and light-transmitting areas regularly arranged on the backlight panel. This ensures that after the light is emitted from the light source, part of it passes through the light-transmitting area, while the other part is reflected by the reflective area and spreads to the side of the backlight panel away from the light source, thus ensuring uniform light distribution.

Benefits of technology

The backlight achieves uniform light distribution throughout, improving the readability and usability of the motorcycle dashboard under different lighting conditions.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a rhombic backlight source which comprises a backlight plate, a light source arranged on the side edge of the backlight plate and light reflecting parts, the light reflecting parts are regularly arranged in the face direction of the backlight plate, and a light transmitting area used for light transmitting is formed between every two adjacent light reflecting parts. Light rays are emitted by the light source and spread towards the face of the backlight plate after passing through the light reflecting part. Compared with the prior art, after light rays are emitted from one side by the light source, part of the light rays can be emitted through the light-transmitting area, and part of the light rays can continue to spread, so that more light rays reach one side far away from the light source, and the light rays at all positions of the whole backlight plate are uniformly distributed; therefore, the uniformity of light at all positions on the backlight source can be improved.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of instrument display equipment, concretely is a rhombic backlight. BACKGROUND

[0002] The use of backlight on the motorcycle instrument panel can better improve the recognition of different display colors, thereby facilitating the differentiation of various information such as speed, oil quantity, etc., helping the rider to quickly obtain key data, making the instrument panel clear and easy to read in the daytime, at night or in insufficient light, so as to better adapt to different light conditions and enhance the safety of riding.

[0003] In the prior art, the light source (LED light source) in the backlight is usually arranged at one side edge of the backlight plate. When the light spreads from one side edge of the backlight plate to the entire plate surface, especially when reaching the other side edge, the brightness will be attenuated. Therefore, this structure makes the brightness uneven at different positions of the entire backlight surface, thereby affecting the use effect, especially on the instrument panel of a motorcycle. When there is light interference in the surrounding environment, the uneven brightness of the instrument panel surface can easily affect the rider's view. SUMMARY

[0004] This section aims to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the utility model name to avoid obscuring the purpose of this section, the abstract of the specification and the utility model name. Such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] To solve the problems in the background art, the utility model provides the following technical solutions:

[0006] A rhombic backlight includes a backlight plate, a light source arranged at the side edge of the backlight plate, and a reflective part, and:

[0007] The reflective part is regularly arranged along the direction of the surface of the backlight plate, and a light transmission area for light transmission is formed between two adjacent reflective parts.

[0008] After the light is emitted by the light source and passes through the reflective part, it spreads towards the surface of the backlight plate.

[0009] As a preferred technical solution of the rhombic backlight, the reflective part is arranged in an array along the direction of the surface of the backlight plate, and the intervals are equal or sequentially increasing.

[0010] As a preferred technical solution of the rhombic backlight, the reflective part includes a first reflective sheet and a second reflective sheet. The light spreads towards the surface of the backlight plate through the first reflective sheet, and the second reflective sheet extends vertically along the backlight plate, with an extension length not less than twice the width of the light transmission area.

[0011] As a preferred technical scheme of the rhombic backlight, the first reflective sheet and the second reflective sheet are integrally connected, the backlight plate is provided with a connecting portion, and the second reflective sheet is connected with the backlight plate through the connecting portion.

[0012] As a preferred technical scheme of the rhombic backlight, the connecting portion comprises a clamping groove formed on the backlight plate, and the second reflective sheet is embeddedly matched with the clamping groove.

[0013] The rhombic backlight has the beneficial effects that, compared with the prior art, when light is emitted from one side by the light source, a part of the light can be emitted through the light transmission area, and the other part of the light can continue to spread, so that more light reaches the side far away from the light source, the light distribution of the whole backlight plate is uniform, and the uniformity of light brightness of the whole backlight source is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor. Among them:

[0015] Figure 1 It is a perspective view of one embodiment of the present application.

[0016] Figure 2 It is a split view of Figure 1 .

[0017] Figure 3 It is an internal display view of Figure 1 .

[0018] Figure 4 It is a light integration schematic view of Figure 3 .

[0019] The drawings show that: 1, the backlight plate; 2, the light source; 3, the light reflection part; 301, the first reflective sheet; 302, the second reflective sheet; 4, the light transmission area; 5, the clamping groove. DETAILED DESCRIPTION

[0020] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings of the specification.

[0021] In the following description, a lot of specific details are set forth in order to provide a thorough understanding of the present application, however, the present application can be practiced in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the spirit of the present application, therefore, the present application is not limited to the specific embodiments disclosed below.

[0022] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. "In one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an embodiment that is independent of or mutually exclusive of other embodiments.

[0023] Thirdly, the present application is described in detail in conjunction with the schematic diagram, in the detailed description of the embodiments of the present application, for the convenience of description, the sectional view of the device structure will be partially enlarged without the general proportion, and the schematic diagram is only an example, which should not limit the scope of protection of the present application herein. In addition, the three-dimensional spatial dimensions including length, width and depth should be included in actual manufacture.

[0024] Referring to Figures 1-4 , one embodiment of the present application provides a rhombic backlight 2, which comprises a backlight plate 1 and a light source 2 (LED lamp) arranged on one side of the backlight plate 1. In addition, the present application also comprises a reflecting part 3, specifically, the reflecting part 3 is regularly arranged along the surface direction of the backlight plate 1, and a light transmission area 4 for light transmission is formed between the adjacent two reflecting parts 3, the light transmission area 4 is distributed on the entire surface of the backlight plate 1, the light emitted through the light transmission part makes the entire surface of the backlight 2 form a light emitting effect;

[0025] As Figure 4 shown, in the working process of the present application, when the light source 2 emits light, the internal situation is as follows:

[0026] The light emitted by the left light source 2 can spread horizontally to make up for the right light density;

[0027] The light downward is reflected upward when irradiating on the bottom wall of the backlight plate 1, so as to reach the light transmission area 4, and the light not entering the light transmission area 4 is reflected and spread to the right under the reflection of the reflecting part 3;

[0028] The light upward is reflected obliquely downward under the reflection of the reflecting part 3 when the light irradiates on the reflecting part 3, so as to continue to spread to the side away from the light source 2;

[0029] In summary, the light emitted by the light source 2, a part into the light transmission area 4, so as to shoot up; another part will be in the cooperation of the light-reflecting part 3 continue to the side without light source 2 to make up, so as to ensure that the side away from the light source 2 also has enough light density, to ensure that the light transmission area 4 also has enough light to shoot out, so as to ensure that the light density of each light transmission area 4 can be fully consistent, to increase the uniformity of the light of the whole backlight 2 everywhere, to improve the use effect.

[0030] Further, referring to Figure 1 and Figure 3 , for the above-mentioned regular distribution of the light-reflecting part 3, specifically, the light-reflecting part 3 along the backlight panel 1 face direction can be uniform array, so that the pitch is equal, or can be distributed in the form of pitch increasing, when the pitch is equal, then the width of each light transmission area 4 is consistent, to meet the normal light transmission demand, when the area of the backlight panel 1 is larger, the side away from the light source 2 needs to make up more light source 2, at this time, the distribution density of the light-reflecting part 3 near the light source 2 can be set larger, so that more light spreads to a distance.

[0031] Further, referring to Figure 3 and Figure 4 , the light-reflecting part 3 in structure includes first light-reflecting sheet 301 and second light-reflecting sheet 302, the first light-reflecting sheet 301 is used to provide light reflection and spread effect, the second light-reflecting sheet 302 extends vertically along the surface of the backlight panel 1, and the extension length is not less than twice the width of the light transmission area 4, so as to ensure that the light transmission area 4 has a narrow and deep shape, so that Figure 4 The view angle is used as a reference, and the light entering the light transmission area 4 can form enough verticality when finally shooting up under the reflection of the second light-reflecting sheet 302, that is, the light can be perpendicular to the surface of the backlight 2 after shooting out, thereby facilitating the head-on observation of the observer to the instrument panel surface.

[0032] Further, referring to Figure 2 , the first light-reflecting sheet 301 and the second light-reflecting sheet 302 are integrally formed, the backlight panel 1 is provided with a connecting part, and the second light-reflecting sheet 302 is connected with the backlight panel 1 through the connecting part. Specifically, the connecting part can be a structure of a clamping groove 5, and one end of the second light-reflecting sheet can be directly embedded in the clamping groove 5 during the assembly between the light-reflecting part 3 and the backlight panel 1, thereby ensuring the smooth assembly process and reducing the manufacturing difficulty.

[0033] It is to be understood that the development of the particular implementations described herein was not determined merely by the availability of certain items or materials. Rather and more generally, specific implementations can be determined, for example, based on the particular requirements of the instrument or system to which that implementation relates. For example, a specific implementation of a reagent or kit can be determined based on the number of assays or assays types that are to be performed by the instrument or system that implementation relates to.

[0034] It should be noted that the above examples are only used to illustrate the technical solutions of the present application, not to limit it. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A rhombic backlight comprising a backlight plate and light sources disposed at the side edges of the backlight plate, characterized in that: Further comprising a light-reflecting part, and: The light-reflecting part is regularly arranged along the direction of the backlight panel surface, and a light-transmitting area for light transmission is formed between two adjacent light-reflecting parts. The light is emitted by the light source and spreads towards the direction of the backlight panel surface after passing through the light-reflecting part.

2. The diamond-shaped backlight of claim 1, wherein: The light-reflecting part is arranged in an array along the direction of the backlight panel surface, and the intervals are equal or sequentially increased.

3. The diamond-shaped backlight of claim 1, wherein: The light-reflecting part comprises a first light-reflecting sheet and a second light-reflecting sheet, the light spreads towards the direction of the backlight panel surface through the first light-reflecting sheet, and the second light-reflecting sheet extends along the vertical direction of the backlight panel with an extension length not less than twice the width of the light-transmitting area.

4. The diamond-shaped backlight of claim 3, wherein: The first light-reflecting sheet and the second light-reflecting sheet are integrally connected, the backlight panel is provided with a connecting part, and the second light-reflecting sheet is connected with the backlight panel through the connecting part.

5. The diamond-shaped backlight of claim 4, wherein: The connecting part comprises a clamping groove constructed on the backlight panel, and the second light-reflecting sheet is embedded and matched with the clamping groove.