Backplane assembly structure compatible with various backlight sources
By designing a backplane assembly structure that is compatible with multiple height backlight sources, and using removable support and screw structures, the problem that traditional backplane design cannot be compatible with multiple OD heights is solved, achieving flexible OD height adjustment and cost reduction.
Patent Information
- Application Number
- CN202421562786.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-03
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-07-03
AI Technical Summary
In LED LCD TVs, traditional backplane designs are not compatible with backlights of multiple heights, resulting in the need to redesign and open the module when the OD height changes, increasing costs.
Design a backplane assembly structure compatible with multiple height backlight sources. Through the detachable support and screw structure, the spacing adjustment between the lamp plate, diffusion plate and the bottom wall of the installation cavity is achieved, and optical designs of multiple OD heights are supported.
With this structure, the OD height can be flexibly adjusted without changing the backplane design, improved design adjustment efficiency, reduced costs, and ensured the best optical display effect.
Smart Images
Figure CN222719787U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of televisions, in particular to a back panel assembly structure compatible with backlight sources of various heights. Background Art
[0002] In LED LCD TVs, the backlight refers to the light panel (or light bar) and the LEDs mounted on it. The height of the space between the light panel (or light bar) and the diffuser is called the optical density (OD). OD affects the optical display quality and is related to the backplane cavity depth. Traditionally, a backplane can only accommodate a single OD optical design height. Changing the OD height requires a change in both the optical design and the backplane cavity depth, requiring a redesign and mold redesign. This is particularly costly for large and extra-large LCD TVs, leading to high costs. Utility Model Content
[0003] In order to overcome the deficiencies of the prior art, the technical problem to be solved by the present invention is: how to reduce the processing cost of the back panel assembly structure of the backlight source when different OD conditions need to be changed.
[0004] The technical solution adopted by the utility model to solve its technical problems is:
[0005] A back panel assembly structure compatible with a variety of high-height backlight sources includes a back panel, the back panel is provided with a mounting cavity with a single-side opening, the mounting cavity is connected to a light board and a diffuser plate in sequence from the bottom wall outward, a support member is provided between the light board and the diffuser plate, the support member is provided with a first mounting surface and a second mounting surface parallel to each other, a preset distance between the first mounting surface and the second mounting surface, the first mounting surface is parallel to and detachably connected to the light board, and the second mounting surface is parallel to and detachably connected to the back panel.
[0006] Furthermore, the support member includes a hollow support shell.
[0007] Furthermore, a first screw structure is provided between the lamp board and the first mounting surface, a second screw structure is provided between the second mounting surface and the bottom wall of the mounting cavity, and the first screw structure and the second screw structure are staggered.
[0008] Furthermore, the above-mentioned first screw structure includes a first screw hole opened on the above-mentioned first mounting surface, the above-mentioned lamp board is provided with a first through hole corresponding to the above-mentioned first screw hole, the above-mentioned first screw hole is threadedly provided with a first screw, the above-mentioned first screw passes through the above-mentioned first through hole and the nut of the above-mentioned first screw abuts the above-mentioned light board; the above-mentioned second screw structure includes a positioning column arranged on the bottom wall of the above-mentioned mounting cavity, the above-mentioned positioning column is provided with a second screw hole along the axis, the above-mentioned second mounting surface is provided with a second through hole for being sleeved with the above-mentioned positioning column, the above-mentioned screw hole is threadedly sleeved with a second screw, and the nut part of the above-mentioned second screw abuts the inner wall of the above-mentioned support shell close to the above-mentioned second mounting surface.
[0009] Furthermore, the first mounting surface is provided with a positioning protrusion, and the lamp panel is provided with a positioning groove that is engaged with the positioning protrusion.
[0010] Furthermore, the first mounting surface is provided with a clearance hole corresponding to the position of the second screw, and the clearance hole, the positioning protrusion and the first screw hole are spaced apart from each other.
[0011] The beneficial effects of the utility model are:
[0012] The detachable support members can provide specified spacing between the light board, the diffuser plate and the bottom wall of the mounting cavity, thereby ensuring a reasonable OD height and thus ensuring the best optical display effect. Moreover, by removing the support members and replacing the support members with different spacings between the first mounting surface and the second mounting surface, the OD height can be easily adjusted, thereby improving the efficiency of design adjustment and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is an exploded schematic diagram of the utility model structure;
[0014] Figure 2 This is a schematic diagram of the connection structure of the utility model;
[0015] Figure 3 This is a schematic diagram of the positional relationship between the light panel and the support member in the utility model;
[0016] Figure 4 This utility model Figure 4 Enlarged view of point A in the middle;
[0017] Figure 5 This is a schematic diagram of another embodiment of the present invention;
[0018] Marked in the figure are, 1-back plate, 2-support member, 3-light board, 4-diffuser plate, 5-mounting cavity, 6-first mounting surface, 7-second mounting surface, 8-first screw hole, 9-first through hole, 10-first screw, 11-positioning groove, 12-positioning protrusion, 13-clearance hole, 14-positioning column, 15-second screw hole, 16-second through hole, 17-second screw. DETAILED DESCRIPTION
[0019] The present invention will be further described below with reference to the accompanying drawings.
[0020] according to Figures 1-4 As shown, the embodiment of the present application proposes a back panel 1 assembly structure compatible with a variety of high-height backlight sources, including a back panel 1, the back panel 1 is provided with a mounting cavity 5 with a single-side opening, the mounting cavity 5 is sequentially connected to a light board 3 and a diffuser plate 4 from the bottom wall outward, a support member 2 is provided between the light board 3 and the diffuser plate 4, the support member 2 is provided with a first mounting surface 6 and a second mounting surface 7 parallel to each other, a preset distance between the first mounting surface 6 and the second mounting surface 7, the first mounting surface 6 is parallel to and detachably connected to the light board 3, and the second mounting surface 7 is parallel to and detachably connected to the back panel 1.
[0021] It should be noted that the detachable support member 2 can provide specified spacing between the light panel 3, the diffuser plate 4 and the bottom wall of the mounting cavity 5, thereby ensuring a reasonable OD height and thus ensuring the best optical display effect. Moreover, by removing the support member 2 and replacing the support member 2 with a different spacing between the first mounting surface 6 and the second mounting surface 7, the OD height can be easily adjusted, thereby improving the efficiency of design adjustment and reducing costs.
[0022] Specifically, the above-mentioned support member 2 includes a hollow support shell, and the above-mentioned first mounting surface 6 and the above-mentioned second mounting surface 7 are two opposite surfaces of the above-mentioned support shell. That is, the support shell is a hollow shell with two parallel outer walls. The vertical cross-sectional profile of the support shell can be rectangular or trapezoidal. The structure has strong stability and supporting performance, and the hollow shell-shaped structure is lighter in weight, which reduces costs.
[0023] During normal use, the support member 2 is used to separate the lamp board 3 and the bottom wall of the mounting cavity 5 by a preset distance, and at the same time, the first mounting surface 6 is connected to the lamp board 3, and the second mounting surface 7 is connected to the bottom wall of the mounting cavity 5 to ensure installation stability. A first screw structure is provided between the above-mentioned light board 3 and the above-mentioned first mounting surface 6, and a second screw structure is provided between the above-mentioned second mounting surface 7 and the bottom wall of the above-mentioned mounting cavity 5. The above-mentioned first screw structure and the above-mentioned second screw structure are staggered, and the connection stability is ensured and the installation efficiency is improved through the screw connection structure.
[0024] Specifically, such as Figure 1 、 Figure 2The first screw structure shown includes a first screw hole 8 opened on the first mounting surface 6, the lamp board 3 is provided with a first through hole 9 corresponding to the first screw hole 8, a first screw 10 is threadedly provided in the first screw hole 8, the first screw 10 passes through the first through hole 9 and the nut of the first screw 10 abuts the lamp board 3; the second screw structure includes a positioning column 14 provided on the bottom wall of the mounting cavity 5, the positioning column 14 is provided with a second screw hole 15 along the axis, the second mounting surface 7 is provided with a second through hole 16 for being sleeved on the positioning column 14, and a second screw 17 is threadedly sleeved in the screw hole. The nut portion of the second screw 17 abuts against the inner wall of the support shell on the side close to the second mounting surface 7. During the normal installation process, the positioning column 14 is first positioned and sleeved in the second through hole 16 to ensure the position accuracy of the support member 2, and the second screw 17 is threaded into the second screw hole 15, and the nut abuts against the inner wall of the support member 2 to ensure a stable connection between the back panel 1 and the support member 2. At the same time, the lamp board 3 is placed on the first mounting surface 6, and the first screw hole 8 is aligned with the first through hole 9. By tightening the first screw 10, a stable connection between the lamp board 3 and the support member 2 is achieved, and the installation position of the diffuser plate 4 is determined, thereby ensuring the preset OD height.
[0025] In order to facilitate the positioning of the lamp board 3 on the first mounting surface 6 , the first mounting surface 6 is provided with a positioning protrusion 12 , and the lamp board 3 is provided with a positioning groove 11 that is engaged with the positioning protrusion 12 .
[0026] In addition, during the actual operation process, the first mounting surface 6 may interfere with the fastening installation of the second screw 17, causing inconvenience in operation. In order to solve the above problem, the first mounting surface 6 is provided with a clearance hole 13 corresponding to the position of the second screw 17. The clearance hole 13, the positioning protrusion 12 and the first screw hole 8 are spaced apart from each other. Under normal working conditions, the back panel 1 is placed flat and the mounting cavity 5 is opened upward. At this time, when installing the support member 2, the second screw 17 is fastened by passing the screwdriver through the clearance hole 13, which is convenient and quick.
[0027] like Figure 3 As shown, there is another special implementation method in this embodiment, which is to directly disassemble the support member 2, the first through hole 9 and the second through hole 16 are of comparable size, and the top plate only needs to be adjusted to a small displacement within the installation cavity 5, so that the first through hole 9 directly cooperates with the positioning column 14, and the second screw 17 is used to achieve the fastening effect, and the lamp board 3 is directly connected to the bottom wall of the installation cavity 5. At this time, the OD height is at its maximum. If the OD height is reduced and adjusted, the preset OD height can be adjusted by detachably connecting support members 2 of different specifications to ensure the best optical effect.
[0028] In summary, the embodiment of the present application proposes an assembly structure of a back panel 1 that is compatible with backlight sources of various heights, including a back panel 1, the back panel 1 is provided with an installation cavity 5 with a single-side opening, the installation cavity 5 is connected with a lamp board 3 and a diffuser plate 4 in sequence from the bottom wall to the outside, a support member 2 is provided between the lamp board 3 and the diffuser plate 4, the support member 2 is provided with a first installation surface 6 and a second installation surface 7 that are parallel to each other, and a preset distance is provided between the first installation surface 6 and the second installation surface 7, the first installation surface 6 is parallel and detachably connected to the light board 3, and the second installation surface 7 is parallel and detachably connected to the back panel 1, and a back panel 1 can be used to be compatible with the assembly of backlight sources of various heights, thereby improving the flexibility of design, and being able to improve efficiency, shorten the assembly cycle, and greatly save mold costs.
Claims
1. A back panel (1) assembly structure compatible with backlight sources of various heights, characterized in that: The invention comprises a back plate (1), wherein the back plate (1) is provided with a mounting cavity (5) with a single-side opening, wherein the mounting cavity (5) is connected to a light board (3) and a diffuser plate (4) in sequence from the bottom wall outward, wherein a support member (2) is arranged between the light board (3) and the diffuser plate (4), wherein the support member (2) is provided with a first mounting surface (6) and a second mounting surface (7) which are parallel to each other, wherein a preset distance is provided between the first mounting surface (6) and the second mounting surface (7), wherein the first mounting surface (6) is detachably connected to the light board (3), and wherein the second mounting surface (7) is detachably connected to the back plate (1).
2. The back panel (1) assembly structure compatible with various backlight sources of different heights according to claim 1, characterized in that: The support member (2) comprises a hollow support shell.
3. The back panel (1) assembly structure compatible with various backlight sources of different heights according to claim 2, characterized in that: A first screw structure is provided between the lamp panel (3) and the first mounting surface (6), and a second screw structure is provided between the second mounting surface (7) and the bottom wall of the mounting cavity (5), and the first screw structure and the second screw structure are arranged in an offset manner.
4. The back panel (1) assembly structure compatible with various backlight sources of different heights according to claim 3, characterized in that: The first screw structure comprises a first screw hole (8) provided on the first mounting surface (6); the lamp board (3) comprises a first through hole (9) corresponding to the first screw hole (8); a first screw (10) is threadedly arranged in the first screw hole (8); the first screw (10) passes through the first through hole (9) and the nut of the first screw (10) abuts against the lamp board (3); the second screw structure comprises a positioning column (14) provided on the bottom wall of the mounting cavity (5); the positioning column (14) comprises a second screw hole (15) along the axis; the second mounting surface (7) comprises a second through hole (16) for being sleeved on the positioning column (14); a second screw (17) is threadedly sleeved in the screw hole; the nut of the second screw (17) abuts against the inner wall of the support shell on the side close to the second mounting surface (7).
5. The back panel (1) assembly structure compatible with various backlight sources of different heights according to claim 4, characterized in that: The first mounting surface (6) is provided with a positioning protrusion (12), and the lamp panel (3) is provided with a positioning groove (11) which is snap-fitted with the positioning protrusion (12).
6. The back panel (1) assembly structure compatible with various backlight sources of different heights according to claim 5, characterized in that: The first mounting surface (6) is provided with a clearance hole (13) corresponding to the position of the second screw (17), and the clearance hole (13), the positioning protrusion (12) and the first screw hole (8) are arranged at intervals.