Backlight module with small backboard gap

Abstract

The utility model provides a backlight module with a small backplane gap, which solves the technical problems that a hook position is not fixed by an inner retaining wall and the gap is overlarge due to the fact that the inner retaining wall must be provided with a notch at the hook position of a rubber frame and a backplane of an existing liquid crystal module in order to ensure that the rubber frame can be demoulded, and can be widely applied to the field of liquid crystal display modules. The back plate specifically comprises a back plate, a vertical side frame is arranged on the periphery of the back plate, a plurality of hooks are arranged on the outer side of the side frame, a rubber frame is installed on the side frame in a matched mode, and the rubber frame is composed of a first folding edge and a second folding edge which are perpendicular to each other. Clamping grooves matched with the hooks are formed in the first folding edge, and blocking edges are arranged on the second folding edge and located between the clamping grooves. Slots are further formed in the mounting positions of the second folding edges and the side frames; guide parts are arranged at the two ends of the blocking edge, the guide parts incline towards the direction of the inserting groove, and the inclined ends of the guide parts extend into the inserting groove to further limit the side frame.

Description

Technical Field

[0001] The utility model belongs to the technical field of liquid crystal display modules, and particularly relates to a backlight module with a small backplane gap. Background Art

[0002] At the hook of the glue frame and the backplane of the current liquid crystal module, in order to ensure that the glue frame can be demolded, a notch must be made on the inner retaining wall, resulting in no inner retaining wall fixation at the hook position and too large a gap; there are about 16 hook structures in the whole product, and auxiliary materials need to be pasted later to reduce the gap, wasting labor and material costs. Content of the Utility Model

[0003] The purpose of the utility model is to solve the above-mentioned technical deficiencies and provide a backlight module with a small backplane gap.

[0004] To this end, the utility model provides a backlight module with a small backplane gap, including a backplane, vertical side frames are arranged around the backplane, a plurality of hooks are arranged on the outer side of the side frames, a glue frame is cooperatively installed on the side frames, and the glue frame is composed of a first folding edge and a second folding edge perpendicular to each other; a card slot matching with the hook is arranged on the first folding edge, and a retaining edge is arranged at a position between the card slots on the second folding edge; a slot is also arranged at the installation position of the second folding edge and the side frame; guide parts are arranged at both ends of the retaining edge, the guide parts incline towards the slot direction, and the inclined ends of the guide parts extend into the slot to further limit the side frame.

[0005] Further, a first retaining wall is also arranged at the free end of the second folding edge, a polarizer is also arranged on the inner side of the liquid crystal panel, and a second retaining wall is arranged at a position corresponding to the first retaining wall on the polarizer; a space is formed among the polarizer, the second folding edge, the first retaining wall and the second retaining wall, and a foam adhesive is arranged in the space.

[0006] Further, an LED light bar is arranged inside the bottom edge of the backplane, and the connection port of the LED light bar extends to the outside of the backplane through the notch of the backplane.

[0007] Further, one end of the hook is an inclined surface and the other end is a horizontal surface, which can ensure that it is not easy to fall off after being inserted into the card slot.

[0008] Further, a bracket mounting plate and an external interface are also arranged on the backplane, and the bracket mounting plate is located at the middle bottom of the backplane.

[0009] The utility model provides a backlight module with a small backplane gap, which has the following beneficial effects:

[0010] 1. From the structural design, the effects that cannot be achieved on the raw material production mold are avoided, a large number of manual operation links are saved, and the labor cost is saved;

[0011] 2. Compared with the method of manually attaching auxiliary materials to control the gap, the yield rate is more stable, and anti-fooling is carried out in the structure, so that the problem of uneven gaps caused by personnel operation will not occur;

[0012] 3. This result indirectly strengthens the cooperation state between the plastic middle frame and the back plate, and the hook position is not easy to be disengaged;

[0013] 4. The appearance of the product is consistent, which is convenient for comprehensive market promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is the front structure diagram of the present utility model;

[0015] Figure 2 is the back structure diagram of the present utility model;

[0016] Figure 3 is the structure diagram of the rubber frame of the present utility model;

[0017] Figure 4 is the cross-sectional view of the hook position of the present utility model;

[0018] Figure 5 is the structure diagram of the bottom of the back plate of the present utility model;

[0019] Reference numerals in the drawings: 1. Liquid crystal panel; 2. Back plate; 3. Rubber frame; 4. Hook; 5. Card slot; 6. Slot; 7. Baffle; 8. First retaining wall; 9. Side frame; 10. Guide part; 11. First folding edge; 12. Second folding edge; 13. Polarizer; 14. External interface; 15. Second retaining wall; 16. LED light bar; 17. Connection port; 18. Bracket mounting plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The present utility model will be further described below in conjunction with the drawings and specific embodiments to help understand the content of the present utility model. The methods used in the present utility model are all conventional methods unless otherwise specified; the raw materials and devices used are all conventional commercially available products unless otherwise specified.

[0021] Such as Figures 1-4As shown in the figure, the present utility model provides a backlight module with a small gap between the backplane. It includes a backplane 2, and vertical side frames 9 are arranged around the backplane 2. A plurality of hooks 4 are arranged on the outer side of the side frames 9. A rubber frame 3 is cooperatively installed on the side frames 9. The rubber frame 3 is composed of a first folding edge 11 and a second folding edge 12 that are perpendicular to each other. A slot 5 that cooperates with the hook 4 is opened on the first folding edge 11, and a stop edge 7 is arranged at a position between the slots 5 on the second folding edge 12. A slot 6 is also opened at the installation position of the second folding edge 12 and the side frame 9. When the rubber frame 3 and the backplane 2 are installed, the side frame 9 can extend into the slot 6 to form a limit. Both ends of the stop edge 7 are provided with guiding parts 10, and the guiding parts 10 are inclined towards the slot 6. The inclined ends of the guiding parts 10 extend into the slot 6 to further limit the side frame 9, reduce the gap between the rubber frame 3 and the backplane 2, and prevent light leakage.

[0022] As Figure 4 shown, a first retaining wall 8 is also arranged on the free end of the second folding edge 12. A polarizing plate 13 is also arranged on the inner side of the liquid crystal panel 1, and a second retaining wall 15 is arranged at a position corresponding to the first retaining wall 8 on the polarizing plate 13. A space is formed among the polarizing plate 13, the second folding edge 12, the first retaining wall 8 and the second retaining wall 15. A foam adhesive is arranged in the space and is limited by the first retaining wall 8 and the second retaining wall 15. As Figure 3 shown, one end of the hook 4 is an inclined surface and the other end is a horizontal surface, which can ensure that it is not easy to fall off after being inserted into the slot 5.

[0023] As Figure 5 shown, an LED light bar 16 is arranged inside the bottom edge of the backplane 2, and the connection port 17 of the LED light bar 16 extends outside the backplane 2 through the notch of the backplane 2. A bracket mounting plate 18 and an external interface 14 are also arranged on the backplane 2, and the bracket mounting plate 18 is located at the middle bottom of the backplane 2.

[0024] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "left", "right", "upper", "lower", "top", "bottom", "front", "rear", "inner", "outer", "back", "middle", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.

[0025] However, the above are only specific embodiments of the present utility model, and the scope of implementation of the present utility model cannot be limited thereby. Therefore, the replacement of equivalent components or equivalent changes and modifications made according to the scope of patent protection of the present utility model should still fall within the scope covered by the claims of the present utility model.

Claims

1. A backlight module with a small backplane gap, comprising a backplane, and vertical side frames are arranged around the backplane, characterized in that: A plurality of hooks are arranged on the outer side of the side frame, and a rubber frame is installed on the side frame, the rubber frame being composed of a first folded edge and a second folded edge perpendicular to each other; a card slot cooperating with the hook is provided on the first folded edge, and a retaining edge is provided on the second folded edge and between the card slots; a slot is also provided at the installation position of the second folded edge and the side frame; guide parts are provided at both ends of the retaining edge, the guide parts are inclined toward the slot direction, and the inclined end of the guide part extends to the inside of the slot to further limit the side frame.

2. The backlight module with small backplane gap according to claim 1, characterized in that: A first baffle is also arranged on the free end of the second folded edge, a polarizing plate is also arranged on the inner side of the liquid crystal panel, and a second baffle is arranged at a position corresponding to the polarizing plate and the first baffle; a space is formed between the polarizing plate, the second folded edge, the first baffle and the second baffle, and foam glue is arranged in the space.

3. The backlight module with small backplane gap according to claim 1, characterized in that: An LED light strip is arranged inside the bottom edge of the back panel, and a connection port of the LED light strip extends to the outside of the back panel through the notch of the back panel.

4. A backlight module with a small backplane gap according to any one of claims 1 to 3, characterized in that: One end of the hook is an inclined surface, and the other end is a horizontal surface, which can ensure that it is not easy to fall off after being inserted into the card slot.

5. The backlight module with small backplane gap according to claim 4, characterized in that: A bracket mounting plate and an external interface are also provided on the back panel, and the bracket mounting plate is located at the middle bottom of the back panel.

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