Casting backlight structure

Abstract

The utility model provides a casting backlight structure which comprises a backlight casting and a backlight middle iron frame which are connected in a clamping mode. A T-shaped clamping groove is formed in one side of the face, attached to the backlight middle iron frame, of the backlight casting, and correspondingly, a T-shaped buckle is arranged on one side of the face, attached to the backlight casting, of the backlight middle iron frame. The T-shaped buckle is buckled with the T-shaped clamping groove, and a layer of black back glue is arranged between the buckling faces of the T-shaped buckle and the T-shaped clamping groove. According to the technical scheme of the casting backlight structure, the backlight middle iron frame and the backlight casting are connected in the matched mode through the T-shaped buckle, the light blocking area of the T-shaped buckle is larger than that of a traditional L-shaped buckle, and a layer of black back glue is arranged between the buckling faces. By means of the arrangement, the bottom of the T-shaped buckle is bonded through the black and black gum, the stability of the T-shaped buckle in the Z-axis direction can be guaranteed, the black and black gum can absorb light, and therefore structural risks and hidden danger of light leakage do not exist.

Description

Technical Field

[0001] The utility model relates to the technical field of backlight, in particular to a casting backlight structure. Background Art

[0002] The current in-vehicle display modules are getting bigger and bigger, and the matching backlight structures are also getting bigger and bigger. Due to the high strength, hardness and good flatness of the casting backlight, it is gradually being promoted by car manufacturers. However, due to the large size of the backlight and the complex internal structure, many buckles need to be designed, and at the same time, it is necessary to consider that the buckles will not leak light. In the traditional structure, the middle iron frame of the casting backlight and the XYZ direction of the casting are matched through the buckles of the middle iron frame and the buckles of the side grooves of the casting. However, due to the processing errors of the buckles, in the Z-axis direction, the matching surfaces of the middle iron frame and the casting are prone to installation gaps or local deformation of the middle iron frame. This installation gap and local deformation of the middle iron frame will have hidden dangers of light leakage or structural risks. Therefore, a better buckle structure will ensure better reliability of the backlight. Utility Model Content

[0003] The utility model aims to provide a casting backlight structure with stable buckle and reduced light leakage risk.

[0004] Specifically, the specific technical solution of the utility model is: a casting backlight structure is proposed, including a backlight casting and a backlight middle iron frame, the backlight casting and the backlight middle iron frame are snap-connected; a T-shaped slot is provided on one side of the fitting surface of the backlight casting and the backlight middle iron frame, and correspondingly, a T-shaped buckle is provided on one side of the fitting surface of the backlight middle iron frame and the backlight casting; the T-shaped buckle is snap-fitted with the T-shaped slot, and a layer of black adhesive is provided between the snapping surfaces.

[0005] As a preferred technical solution, after the T-shaped buckle is buckled with the T-shaped slot, the upper surface of the T-shaped buckle is lower than the upper surface of the T-shaped slot.

[0006] As a preferred technical solution, the T-shaped slot is provided with left and right protrusions which are arranged oppositely, and the left and right T-shoulders of the T-shaped buckle can be clamped by the left and right protrusions which are arranged oppositely.

[0007] As a preferred technical solution, the T-shaped slot includes a first slot and a second slot, and correspondingly, the T-shaped buckle includes a first buckle and a second buckle, the second buckle is snapped into the second slot, and the first buckle is snapped into the first slot.

[0008] As a preferred technical solution, the second card slot is located at the lower end of the first card slot.

[0009] As a preferred technical solution, the thickness of the black adhesive is 0.05 mm.

[0010] As a preferred technical solution, an inner slot is spaced apart on one side of the fitting surface between the backlight casting and the backlight middle iron frame, and the inner slot and the T-shaped slot are spaced apart on one side of the fitting surface between the backlight casting and the backlight middle iron frame.

[0011] As a preferred technical solution, correspondingly, an inner buckle is provided on one side of the fitting surface of the backlight casting of the backlight iron frame, and the inner buckle can be inserted into the inner slot to form a fit.

[0012] As a preferred technical solution, raised points are arranged at intervals on the inner buckle surface.

[0013] As a preferred technical solution, it also includes a backlight optical film material, which is arranged in the space enclosed by the backlight iron frame.

[0014] The utility model has the following beneficial effects: the utility model proposes a casting backlight structure, in which the iron frame in the backlight is connected to the backlight casting by a T-shaped buckle, because the T-shaped buckle has a larger light-blocking area than the traditional L-shaped buckle, and a layer of black adhesive is provided between the buckling surfaces. In this way, the bottom of the T-shaped buckle is bonded with black adhesive, which can ensure the stability of the T-shaped buckle in the Z-axis direction, and the black adhesive can also absorb light, so there is no structural risk and light leakage hidden danger. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 A schematic diagram of a casting backlight structure proposed in an embodiment of the utility model.

[0017] Description of the reference numerals: backlight casting 1; T-shaped slot 11; protrusion 111; inner slot 12; backlight middle iron frame 2; T-shaped buckle 21; inner buckle 22. DETAILED DESCRIPTION

[0018] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this application will be more comprehensive and complete and fully convey the concept of the example embodiments to those skilled in the art.

[0019] In addition, described feature, structure or characteristic can be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present application. However, those skilled in the art will appreciate that the technical scheme of the present application can be put into practice without one or more of the specific details, or other methods, components, devices, steps, etc. can be adopted. In other cases, known methods, devices, realizations or operations are not shown or described in detail to avoid blurring the various aspects of the application.

[0020] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities may be implemented in software form, or in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0021] The flowcharts shown in the accompanying drawings are only exemplary and do not necessarily include all the contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps can be decomposed, and some operations / steps can be combined or partially combined, so the actual execution order may change according to actual conditions.

[0022] It should be noted that the “plurality” mentioned in this article refers to two or more.

[0023] Example

[0024] like Figure 1 As shown, the present embodiment proposes a casting backlight structure, including a backlight casting 1 and a backlight middle iron frame 2, the backlight casting 1 and the backlight middle iron frame 2 are snap-connected; a T-shaped slot 11 is provided on one side of the fitting surface of the backlight casting 1 and the backlight middle iron frame 2, and correspondingly, a T-shaped buckle 21 is provided on one side of the fitting surface of the backlight middle iron frame 2 and the backlight casting 1; the T-shaped buckle 21 is snapped with the T-shaped slot 11. The T-shaped buckle 21 has a larger light-blocking area than the traditional L-shaped buckle, and a layer of black-black adhesive is provided between the snapping surfaces. The black-black adhesive can ensure the stability of the T-shaped buckle 21 in the Z-axis direction, and the black-black adhesive can also absorb light, so there is no structural risk and hidden danger of light leakage. Preferably, the thickness of the black-black adhesive is 0.05mm.

[0025] Preferably, after the T-shaped buckle 21 is buckled with the T-shaped slot 11, the upper surface of the T-shaped buckle 21 is lower than the upper surface of the T-shaped slot 11. Figure 1 As shown, the T-shaped slot 11 is provided with left and right protrusions 111 which are arranged opposite to each other, and the left and right T-shoulders of the T-shaped buckle 21 can be just caught by the left and right protrusions 111 which are arranged opposite to each other.

[0026] Preferably, not shown in the figure, the T-shaped slot 11 includes a first slot and a second slot, and correspondingly, the T-shaped buckle 21 includes a first buckle and a second buckle, the second buckle is snapped into the second slot, and the first buckle is snapped into the first slot. The second slot is located at the lower end of the first slot. That is, the second slot is in the downward direction of the first slot, and on the basis of the plane of the first slot, a groove is further dug downward to obtain the second slot. The circumferential length of the second slot is less than the circumferential length of the first slot.

[0027] Preferably, an inner slot 12 is arranged at intervals on one side of the fitting surface of the backlight casting 1 and the backlight middle iron frame 2, and the inner slot 12 and the T-shaped slot 11 are arranged at intervals on one side of the fitting surface of the backlight casting 1 and the backlight middle iron frame 2. Correspondingly, an inner buckle 22 is arranged on one side of the fitting surface of the backlight middle iron frame 2 and the backlight casting 1, and the inner buckle 22 can be inserted into the inner slot 12 to form a fit. Furthermore, in order to make the fit between the inner slot 12 and the inner buckle 22 more stable, convex points are arranged at intervals on the surface of the inner buckle 22 to increase the friction force.

[0028] Furthermore, the casting backlight structure also includes a backlight optical film material, and the backlight optical film material is arranged in the space enclosed by the backlight middle iron frame 2.

[0029] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A casting backlight structure, characterized in that: It includes a backlight casting and a backlight middle iron frame, which are snap-fitted and connected; a T-shaped slot is provided on one side of the fitting surface of the backlight casting and the backlight middle iron frame, and correspondingly, a T-shaped buckle is provided on one side of the fitting surface of the backlight middle iron frame and the backlight casting; the T-shaped buckle is snap-fitted with the T-shaped slot, and a layer of black adhesive is provided between the snapping surfaces.

2. A casting backlight structure according to claim 1, characterized in that: After the T-shaped buckle is buckled with the T-shaped slot, the upper surface of the T-shaped buckle is lower than the upper surface of the T-shaped slot.

3. A casting backlight structure according to claim 2, characterized in that: The T-shaped slot is provided with left and right protrusions which are arranged oppositely, and the left and right T-shoulders of the T-shaped buckle can be clamped by the left and right protrusions which are arranged oppositely.

4. A casting backlight structure according to claim 3, characterized in that: The T-shaped slot includes a first slot and a second slot. Correspondingly, the T-shaped buckle includes a first buckle and a second buckle. The second buckle is snapped into the second slot, and the first buckle is snapped into the first slot.

5. The casting backlight structure according to claim 4, characterized in that: The second card slot is located at the lower end of the first card slot.

6. The casting backlight structure according to claim 1, characterized in that: The thickness of the black adhesive is 0.05 mm.

7. The casting backlight structure according to claim 1, characterized in that: An inner slot is arranged at intervals on one side of the fitting surface between the backlight casting and the backlight middle iron frame. The inner slot and the T-shaped slot are arranged at intervals on one side of the fitting surface between the backlight casting and the backlight middle iron frame.

8. The casting backlight structure according to claim 7, characterized in that: Correspondingly, an inner buckle is provided on one side of the fitting surface of the backlight casting of the backlight middle iron frame, and the inner buckle can be inserted into the inner slot to form a fit.

9. The casting backlight structure according to claim 8, characterized in that: The inner buckle surface is provided with convex points at intervals.

10. A casting backlight structure according to any one of claims 1 to 9, characterized in that: It also includes a backlight optical film material, which is arranged in a space surrounded by the backlight middle iron frame.

Images