Direct type backlight frame device for mounting liquid crystal glass PCB (printed circuit board)

Abstract

The utility model discloses a direct type backlight frame device for installing a liquid crystal glass PCB (printed circuit board), which comprises an aluminum alloy frame and a metal plate protective cover, the aluminum alloy frame comprises a first transverse plate, an inclined plate and a first vertical plate, the inclined plate is fixedly arranged on one side of the surface of the first transverse plate, the first vertical plate is fixedly arranged at the upper end of the inclined plate, and the metal plate protective cover is arranged on the first vertical plate. The metal plate protection cover comprises a second transverse plate and a second vertical plate, the second vertical plate is fixedly arranged on one side of the surface of the second transverse plate, an LED lamp panel mounting plane is arranged at the upper end of the first transverse plate, an LED lamp panel power supply wire groove is formed in the inclined plate, and a middle frame mounting groove is formed in one side of the surface of the first vertical plate. And an optical film material positioning block is arranged on one side of the middle frame mounting groove on the surface of the first vertical plate. The backlight structure can meet the use requirement of most liquid crystal glass, the universality of the backlight structure is improved, the product circulation is improved, and meanwhile the product material cost can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of backlight frame devices, in particular to a direct-down backlight frame device for installing a liquid crystal glass PCB board. Background Art

[0002] The existing conventional liquid crystal display modules are divided into two types: side-entry backlight structure and direct-down backlight structure. The direct-down type is further divided into thin and thick types. The liquid crystal glass PCB board of the side-entry backlight structure is installed on the back of the frame, and the liquid crystal glass PCB board of the thick direct-down backlight structure is installed on the side of the frame. The thin direct-down backlight structure is very difficult to install the liquid crystal glass PCB board due to its thickness and the COF length of the liquid crystal glass PCB board. The COF of the liquid crystal glass PCB board installed on the back of the frame is relatively not long enough, and the COF of the liquid crystal glass PCB board installed on the side of the frame is relatively too long. As a result, only a small number of special liquid crystal glass PCB boards with a relatively good COF can be installed. This makes the backlight structure non-universal and has certain limitations, which has a great impact on the circulation of the product and invisibly increases the cost of the product.

[0003] Therefore, in order to solve this problem, it is necessary to improve a direct-type backlight frame device for installing a liquid crystal glass PCB board. Utility Model Content

[0004] The purpose of the utility model is to provide a direct-type backlight frame device for installing a liquid crystal glass PCB board, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a direct-down backlight frame device for installing a liquid crystal glass PCB board, comprising an aluminum alloy frame and a sheet metal protective cover, the aluminum alloy frame comprising a first horizontal plate, an inclined plate, and a first vertical plate, one side of the surface of the first horizontal plate is fixedly provided with an inclined plate, and the upper end of the inclined plate is fixedly provided with a first vertical plate, the sheet metal protective cover comprises a second horizontal plate and a second vertical plate, one side of the surface of the second horizontal plate is fixedly provided with a second vertical plate, an LED light board mounting plane is arranged at the upper end of the first horizontal plate, a LED light board power supply line groove is provided inside the inclined plate, a middle frame mounting groove is provided on one side of the surface of the first vertical plate, an optical film material positioning block is arranged on one side of the middle frame mounting groove on the surface of the first vertical plate, a diffusion plate placement platform is arranged on one side of the diffusion plate placement platform, a reflective film lining is arranged on one side of the diffusion plate placement platform, and a liquid crystal glass body is arranged on the upper end of the optical film material positioning block.

[0006] Preferably, a front frame is provided on one side of the first vertical plate, a first screw is fixedly provided between the front frame and the first vertical plate, a second screw is provided between the front frame and the second vertical plate, and a third screw is provided between the second horizontal plate and the first horizontal plate.Figure 1 As shown, the front frame and the sheet metal protection cover form a complete protection structure, and are fixed to the aluminum alloy frame by a first screw, a second screw, and a third screw.

[0007] Preferably, a liquid crystal glass PCB board is arranged on the outer side of the inclined plate, and double-sided EVA foam with adhesive is arranged between the liquid crystal glass PCB board and the outer side of the inclined plate, so that the double-sided EVA foam with adhesive fixes the liquid crystal glass PCB board on the surface of the inclined plate; a COF is arranged between the liquid crystal glass PCB board and the liquid crystal glass body; when the liquid crystal glass PCB board is installed, the COF bends down from the groove CNC-processed on the outer side of the first vertical plate, so that the liquid crystal glass PCB board and the liquid crystal glass body are connected to each other, and the COF itself is fixed on the outer side of the inclined plate with double-sided EVA foam with adhesive.

[0008] Preferably, an accessory mounting groove is provided on the upper end of the first horizontal plate on one side of the LED lamp board mounting plane; the accessory mounting groove enables this structural part to be installed with other accessory structures.

[0009] Preferably, a mounting step is provided at the lower end of the first horizontal plate, and the second horizontal plate of the sheet metal protective cover can be installed through this mounting step, so that the second horizontal plate is engaged inside the mounting step and then fixedly connected by a third screw.

[0010] Preferably, a frame splicing screw hole is provided at the lower end of the reflective film lining, and a plurality of structures can be spliced ​​through the frame splicing screw hole.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. Compared with the existing side-entry backlight structure, the liquid crystal glass PCB board is installed on the back of the frame, and the thick direct-down backlight structure, the liquid crystal glass PCB board is installed on the side of the frame. The third device is designed to make the backlight frame tilted in a limited space, and the installation position of the liquid crystal glass PCB board is enlarged to achieve better compatibility. In this way, it can meet the use of most liquid crystal glasses, increase the versatility of the backlight structure, improve the circulation of the product, and reduce the material cost of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of a direct-type backlight frame device for installing a liquid crystal glass PCB board according to the utility model;

[0014] Figure 2 This is the overall structural view of the aluminum alloy frame in a direct-type backlight frame device for installing a liquid crystal glass PCB board according to the utility model;

[0015] Figure 3This is an overall structural view of a sheet metal protective cover in a direct-down backlight frame device for installing a liquid crystal glass PCB board according to the utility model.

[0016] In the figure: 1. first horizontal plate; 2. inclined plate; 3. first vertical plate; 4. second horizontal plate; 5. second vertical plate; 6. LED light board installation plane; 7. LED light board power supply line slot; 8. middle frame installation slot; 9. optical film positioning block; 10. diffusion plate placement platform; 11. reflective film lining; 12. liquid crystal glass body; 13. frame splicing screw holes; 14. front frame; 15. first screw; 16. second screw; 17. third screw; 18. liquid crystal glass PCB board; 19. EVA foam with double-sided adhesive; 20. COF; 21. accessory installation slot; 22. installation step. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-3 The utility model provides a technical solution: a direct-down backlight frame device for installing a liquid crystal glass PCB board, comprising an aluminum alloy frame and a sheet metal protection cover, the aluminum alloy frame comprising a first horizontal plate 1, an inclined plate 2, and a first vertical plate 3, one side of the surface of the first horizontal plate 1 is fixedly provided with the inclined plate 2, and the upper end of the inclined plate 2 is fixedly provided with the first vertical plate 3, the sheet metal protection cover comprises a second horizontal plate 4 and a second vertical plate 5, one side of the surface of the second horizontal plate 4 is fixedly provided with the second vertical plate 5, the upper end of the first horizontal plate 1 is provided with an LED light board mounting plane 6, the inclined plate 2 is provided with an LED light board power supply line groove 7, one side of the surface of the first vertical plate 3 is provided with a middle frame mounting groove 8, the surface of the first vertical plate 3 is provided with an optical film material positioning block 9 on one side of the middle frame mounting groove 8, a diffusion plate placement platform 10 is provided on one side of the optical film material positioning block 9, a reflective film lining 11 is provided on one side of the diffusion plate placement platform 10, and a liquid crystal glass body 12 is provided on the upper end of the optical film material positioning block 9.

[0019] A front frame 14 is provided on one side of the first vertical plate 3, a first screw 15 is fixedly provided between the front frame 14 and the first vertical plate 3, a second screw 16 is provided between the front frame 14 and the second vertical plate 5, and a third screw 17 is provided between the second horizontal plate 4 and the first horizontal plate 1. Figure 1As shown, the front frame 14 and the sheet metal protection cover form a complete protection structure, and are fixed to the aluminum alloy frame by a first screw 15, a second screw 16, and a third screw 17;

[0020] A liquid crystal glass PCB board 18 is arranged on the outside of the inclined plate 2, and a double-sided adhesive EVA foam 19 is arranged between the liquid crystal glass PCB board 18 and the outside of the inclined plate 2, so that the double-sided adhesive EVA foam 19 fixes the liquid crystal glass PCB board 18 on the surface of the inclined plate 2; a COF 20 is arranged between the liquid crystal glass PCB board 18 and the liquid crystal glass body 12; when the liquid crystal glass PCB board 18 is installed, the COF 20 bends down from the groove processed by CNC on the outside of the first vertical plate 3, so that the liquid crystal glass PCB board 18 and the liquid crystal glass body 12 are connected to each other, and the COF 20 is fixed on the outside of the inclined plate 2 by the double-sided adhesive EVA foam 19;

[0021] The upper end of the first horizontal plate 1 is provided with an accessory installation groove 21 on one side of the LED lamp board installation plane 6; the accessory installation groove 21 enables this structural part to be installed with other accessory structures;

[0022] The lower end of the first horizontal plate 1 is provided with a mounting step 22, through which the second horizontal plate 4 of the sheet metal protective cover can be mounted, so that the second horizontal plate 4 is engaged inside the mounting step 22, and then fixedly connected by the third screw 17;

[0023] The lower end of the reflective film lining 11 is provided with a frame splicing screw hole 13, through which a plurality of structures can be spliced.

[0024] Working principle: This application file consists of an aluminum profile frame ( Figure 2 ) and sheet metal protective cover ( Figure 3 ), the aluminum profile frame structure is formed by heating the aluminum ingot to a certain temperature and extruding it through a pre-designed mold using related equipment. The appearance is an integral, all-aluminum structure. The sheet metal protective cover is formed by bending the sheet metal and is made of electrolytic iron plate.

[0025] When the liquid crystal glass PCB board 18 is installed, COF20 bends down from the CNC-machined groove on the outside of the first vertical plate 3, so that the liquid crystal glass PCB board 18 is connected to the liquid crystal glass body 12, and the liquid crystal glass PCB board 18 is fixed to the outside of the inclined plate 2 with double-sided adhesive EVA foam 19. In this way, the inclined space is used to secure the liquid crystal glass PCB board 18, so that the installation space is expressed and can adapt to the installation requirements of various signals. Then, the first vertical plate 3 is aligned with the inner side of the front frame 14, and finally the sheet metal protective cover, the vertical plate, and the aluminum alloy frame are fixed to each other with the first screw 15, the second screw 16, and the third screw 17.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A direct-type backlight frame device for mounting a liquid crystal glass PCB board, comprising an aluminum alloy frame and a sheet metal protective cover, characterized in that: The aluminum alloy frame comprises a first horizontal plate (1), an inclined plate (2), and a first vertical plate (3); the inclined plate (2) is fixedly arranged on one side of the surface of the first horizontal plate (1); the first vertical plate (3) is fixedly arranged on the upper end of the inclined plate (2); the sheet metal protective cover comprises a second horizontal plate (4) and a second vertical plate (5); the second horizontal plate (4) is fixedly arranged on one side of the surface of the second horizontal plate (4); an LED light board installation plane (6) is arranged on the upper end of the first horizontal plate (1); an LED light board power supply line groove (7) is provided inside the inclined plate (2); a middle frame installation groove (8) is provided on one side of the surface of the first vertical plate (3); an optical film material positioning block (9) is arranged on one side of the middle frame installation groove (8) on the surface of the first vertical plate (3); a diffusion plate placement platform (10) is arranged on one side of the optical film material positioning block (9); a reflective film lining (11) is arranged on one side of the diffusion plate placement platform (10); and a liquid crystal glass body (12) is arranged on the upper end of the optical film material positioning block (9).

2. The direct-type backlight frame device for mounting a liquid crystal glass PCB board according to claim 1, characterized in that: A front frame (14) is provided on one side of the first vertical plate (3); a first screw (15) is fixedly provided between the front frame (14) and the first vertical plate (3); a second screw (16) is provided between the front frame (14) and the second vertical plate (5); and a third screw (17) is provided between the second horizontal plate (4) and the first horizontal plate (1).

3. The direct-type backlight frame device for mounting a liquid crystal glass PCB board according to claim 1, characterized in that: A liquid crystal glass PCB board (18) is arranged on the outside of the inclined plate (2); a double-sided adhesive EVA foam (19) is arranged between the liquid crystal glass PCB board (18) and the outside of the inclined plate (2), so that the double-sided adhesive EVA foam (19) fixes the liquid crystal glass PCB board (18) on the surface of the inclined plate (2); and a COF (20) is arranged between the liquid crystal glass PCB board (18) and the liquid crystal glass body (12).

4. The direct-type backlight frame device for mounting a liquid crystal glass PCB board according to claim 1, characterized in that: An accessory mounting groove (21) is provided at the upper end of the first horizontal plate (1) on one side of the LED lamp board mounting plane (6).

5. The direct-type backlight frame device for mounting a liquid crystal glass PCB board according to claim 1, characterized in that: A mounting step (22) is provided at the lower end of the first transverse plate (1).

6. The direct-type backlight frame device for mounting a liquid crystal glass PCB board according to claim 1, characterized in that: The lower end of the reflective film lining (11) is provided with a frame splicing screw hole (13).

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