Backlight source with compact and stable structure

Abstract

The utility model discloses a backlight source with a compact and stable structure. The backlight source comprises an iron frame, a rubber frame, a backlight module and a positioning plug, a positioning hole is formed in the outer side of the iron frame; the outer side of the iron frame is provided with a clamping groove around the positioning hole; a positioning strip is arranged on the inner bottom wall of the iron frame; the rubber frame is arranged in the iron frame; a positioning groove is formed in the bottom of the rubber frame and arranged on the outer side of the positioning strip in a sleeving mode. A positioning block is arranged on the inner side of the rubber frame, and a clamping groove is formed in the positioning block; a positioning opening communicated with the clamping groove is formed in the outer side of the rubber frame; the positioning opening directly faces the positioning hole; the backlight module comprises a light guide plate; the light guide plate is arranged in the rubber frame; an embedding opening is formed in the outer side of the light guide plate; the embedding opening sleeves the outer side of the positioning block; the positioning plug penetrates through the positioning hole and the positioning opening and is inserted into the clamping groove in an interference manner; an embedded plate is arranged on one side of the positioning plug; and the embedded plate is embedded in the clamping groove.

Description

Technical Field

[0001] The utility model belongs to the technical field of backlight sources, and in particular relates to a backlight source with a compact and stable structure. Background Art

[0002] The backlight is a light source located behind the LCD. Its luminous effect will directly affect the visual effect of the LCD module. The LCD itself does not emit light, it displays graphics or the result of its light modulation. The backlight is mainly composed of a light source, a light guide plate, an optical film, and structural parts.

[0003] In the existing backlight source, a clamping block is usually provided on the outside of the plastic frame, and a clamping hole is provided on the outside of the iron frame. The clamping block and the clamping hole are interference fit to fix the plastic frame and the iron frame. In this way, there are concave and convex parts on the outside of the iron frame, resulting in an unsightly appearance, and there is a risk of friction and injury due to manual transfer. Utility Model Content

[0004] The utility model provides a backlight source with a compact and stable structure to solve the above technical problems.

[0005] The solution adopted by the utility model to achieve its technical effect is:

[0006] A backlight source with a compact and stable structure comprises an iron frame, a plastic frame, a backlight module and a positioning plug; a positioning hole is arranged on the outer side of the iron frame; an embedding groove is arranged on the outer side of the iron frame at a position around the positioning hole; a positioning strip is arranged on the inner bottom wall of the iron frame; the plastic frame is arranged in the iron frame; a positioning groove is arranged on the bottom of the plastic frame, and the positioning groove is sleeved on the outer side of the positioning strip; a positioning block is arranged on the inner side of the plastic frame, and a card slot is arranged in the positioning block; a positioning opening connected to the card slot is arranged on the outer side of the plastic frame; the positioning opening is directly opposite to the positioning hole; the backlight module comprises a light guide plate; the light guide plate is arranged in the plastic frame; an embedding opening is arranged on the outer side of the light guide plate; the embedding opening is sleeved on the outer side of the positioning block; the positioning plug passes through the positioning hole and the positioning opening and is inserted into the card slot by interference fit; an inlay plate is arranged on one side of the positioning plug; the inlay plate is embedded in the embedding groove.

[0007] Preferably, the embedding groove is provided with an undercut groove; the panel is provided with an undercut clamping block; the undercut groove and the undercut clamping block are interference-fitted with each other, so that the panel is firmly embedded in the embedding groove.

[0008] Preferably, the backlight module also includes a reflective sheet, a diffusion film, a lower light-enhancing film and an upper light-enhancing film; the reflective sheet is arranged between the light guide plate and the bottom wall of the iron frame; a positioning opening is arranged on the reflective sheet, and the positioning opening is sleeved on the outside of the positioning strip; a positioning port is arranged on the outside of the reflective sheet; the positioning port is sleeved on the outside of the positioning block; the diffusion film, the lower light-enhancing film and the upper light-enhancing film are stacked in sequence from bottom to top on the top of the light guide plate.

[0009] Preferably, the backlight module also includes an LED lamp and FPC lamp glue; the LED lamp is arranged at the top of one end of the light guide plate; a glue groove is arranged on one side of the top of the glue frame; the FPC lamp glue is bonded to the glue groove and the top of one end of the light guide plate, and the FPC lamp glue is bonded and covers the top of the LED lamp.

[0010] Preferably, the backlight module further comprises light-shielding glue; the light-shielding glue is bonded to the top of the iron frame, the glue frame and around the top of the upper brightness enhancement film; the light-shielding glue is bonded and covered on the top of the FPC lamp glue.

[0011] The beneficial effects of the utility model are as follows: the rubber frame is positioned with the iron frame through the positioning strip and the positioning groove, the light guide plate is positioned with the rubber frame through the positioning block and the embedding opening, and finally the rubber plug is inserted into the card slot to clamp the rubber frame and the light guide plate, and the embedded plate is embedded in the embedding groove to tightly connect the iron frame, the rubber frame and the light guide plate into one, so that the outer sides of the iron frame and the rubber frame are flat after being fixed, and the iron frame, the rubber frame and the light guide plate are firmly installed and not easy to loosen, thereby improving the service life of the backlight source. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of a simple explosion of a backlight source disclosed in an embodiment of the utility model;

[0013] Figure 2 This is a top view schematic diagram of the adhesive frame with FPC light adhesive disclosed in the embodiment of the utility model;

[0014] Figure 3 It is a top view schematic diagram of the rubber frame disclosed in the embodiment of the utility model;

[0015] Figure 4 This is a bottom view schematic diagram of the rubber frame disclosed in the embodiment of the utility model;

[0016] Figure 5 It is a top view schematic diagram of the iron frame disclosed in the embodiment of the utility model;

[0017] Figure 6 A simplified side view of the rubber frame disclosed in the embodiment of the utility model;

[0018] Figure 7 A simplified side view of an iron frame disclosed in an embodiment of the utility model;

[0019] Figure 8 The present invention is a simplified exploded cross-sectional view of the positioning plug, iron frame and rubber frame disclosed in the embodiment of the present utility model.

[0020] Label description: 1- iron frame, 2- plastic frame, 3- positioning plug, 4- embedding groove, 5- positioning strip, 6- positioning groove, 7- positioning block, 8- card slot, 9- light guide plate, 10- inlay plate, 11- reverse hook groove, 12- reverse hook card block, 13- reflective sheet, 14- diffusion film, 15- lower brightness enhancement film, 16- upper brightness enhancement film, 17- LED lamp, 18- FPC lamp glue, 19- glue slot, 20- light-shielding glue. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. It should be noted that when an element is referred to as "fixed on" or "set on" another element, it can be directly on the other element or there may be a centering element at the same time. When an element is referred to as "connected to" another element, it can be directly connected to the other element or there may be a centering element at the same time. When an element is referred to as being "fixedly connected to" another element, it can be a common fixed connection method such as welding, bolting or gluing.

[0022] Please refer to Figure 1-8 In a preferred embodiment of the utility model, a backlight source with a compact and stable structure is disclosed, comprising an iron frame 1, a plastic frame 2, a backlight module and a positioning plug 3; a positioning hole is arranged on the outer side of the iron frame 1; an embedding groove 4 is arranged on the outer side of the iron frame 1 around the positioning hole; a positioning strip 5 is arranged on the inner bottom wall of the iron frame 1; the plastic frame 2 is arranged in the iron frame 1; a positioning groove 6 is arranged at the bottom of the plastic frame 2, and the positioning groove 6 is sleeved on the outer side of the positioning strip 5; a positioning block 7 is arranged on the inner side of the plastic frame 2, and the positioning block 7 is arranged on the inner side of the plastic frame 2. A card slot 8 is provided in the positioning block 7; a positioning opening connected to the card slot 8 is provided on the outer side of the rubber frame 2; the positioning opening is opposite to the positioning hole; the backlight module includes a light guide plate 9; the light guide plate 9 is provided in the rubber frame 2; an embedding opening is provided on the outer side of the light guide plate 9; the embedding opening is sleeved on the outer side of the positioning block 7; the positioning plug 3 passes through the positioning hole and the positioning opening and is inserted into the card slot 8 with interference fit; an inlay plate 10 is provided on one side of the positioning plug 3; the inlay plate 10 is embedded in the embedding groove 4.

[0023] Specifically, the embedding groove 4 is provided with an undercut groove 11 ; the panel 10 is provided with an undercut block 12 ; the undercut groove 11 and the undercut block 12 are interferingly engaged with each other, so that the panel 10 is firmly embedded in the embedding groove 4 .

[0024] Specifically, the backlight module also includes a reflective sheet 13, a diffusion film 14, a lower light-enhancing film 15 and an upper light-enhancing film 16; the reflective sheet 13 is arranged between the light guide plate 9 and the bottom wall of the iron frame 1; a positioning opening is arranged on the reflective sheet 13, and the positioning opening is sleeved on the outside of the positioning strip 5; a positioning port is arranged on the outside of the reflective sheet 13; the positioning port is sleeved on the outside of the positioning block 7; the diffusion film 14, the lower light-enhancing film 15 and the upper light-enhancing film 16 are stacked in sequence from bottom to top on the top of the light guide plate 9.

[0025] Specifically, the backlight module further includes an LED lamp 17 and an FPC lamp glue 18; the LED lamp 17 is arranged on the top of one end of the light guide plate 9; a glue groove 19 is arranged on one side of the top of the glue frame 2; the FPC lamp glue 18 is glued to the glue groove 19 and the top of one end of the light guide plate 9, and the FPC lamp glue 18 is glued and covers the top of the LED lamp 17. The glue groove 19 is provided for gluing the FPC lamp glue 18 with a larger width, and the FPC lamp glue 18 has a sufficient width to facilitate automatic gluing of the equipment.

[0026] Specifically, the backlight module further includes a light shielding glue 20 ; the light shielding glue 20 is bonded to the top of the iron frame 1 , the glue frame 2 and around the top of the upper brightness enhancement film 16 ; the light shielding glue 20 is bonded and covered on the top of the FPC lamp glue 18 .

[0027] From the above description, it can be seen that the iron frame, the plastic frame and the light guide plate of the utility model are firmly installed and not easy to loosen.

[0028] The preferred embodiments of the present invention are described in detail above in conjunction with the drawings in the specification. It should be noted that the protection scope of the present invention includes but is not limited to the above embodiments. The specific structures disclosed in the drawings in the specification are only preferred embodiments of the present invention. Technical personnel in the field can also develop other embodiments on this basis. Any simple deformation or equivalent substitution that does not deviate from the innovative concept of the present invention is covered by the present invention and belongs to the protection scope of the present invention.

Claims

1. A backlight source with a compact and stable structure, characterized in that: include: An iron frame; a positioning hole is arranged on the outer side of the iron frame; an embedding groove is arranged on the outer side of the iron frame around the positioning hole; a positioning strip is arranged on the inner bottom wall of the iron frame; A plastic frame; the plastic frame is arranged in the iron frame; a positioning groove is arranged at the bottom of the plastic frame, and the positioning groove is sleeved on the outer side of the positioning strip; a positioning block is arranged on the inner side of the plastic frame, and a card slot is arranged in the positioning block; a positioning opening connected to the card slot is arranged on the outer side of the plastic frame; the positioning opening is directly opposite to the positioning hole; Backlight module; The backlight module comprises a light guide plate; the light guide plate is arranged in the plastic frame; an embedding opening is arranged on the outer side of the light guide plate; the embedding opening is sleeved on the outer side of the positioning block; A positioning plug; the positioning plug is inserted into the card slot through the positioning hole and the positioning opening; a panel is provided on one side of the positioning plug; the panel is embedded in the embedding groove.

2. A backlight source with a compact and stable structure according to claim 1, characterized in that: The embedding groove is provided with an undercut groove; the panel is provided with an undercut block; the undercut groove and the undercut block are mutually interference-fitted, so that the panel is firmly embedded in the embedding groove.

3. The backlight source with a compact and stable structure according to claim 1, characterized in that: The backlight module also includes a reflective sheet, a diffusion film, a lower light-enhancing film and an upper light-enhancing film; the reflective sheet is arranged between the light guide plate and the bottom wall of the iron frame; a positioning opening is arranged on the reflective sheet, and the positioning opening is sleeved on the outside of the positioning strip; a positioning port is arranged on the outside of the reflective sheet; the positioning port is sleeved on the outside of the positioning block; the diffusion film, the lower light-enhancing film and the upper light-enhancing film are stacked in sequence from bottom to top on the top of the light guide plate.

4. The backlight source with a compact and stable structure according to claim 3, characterized in that: The backlight module also includes an LED lamp and FPC lamp glue; the LED lamp is arranged on the top of one end of the light guide plate; a glue groove is arranged on one side of the top of the glue frame; the FPC lamp glue is bonded to the glue groove and the top of one end of the light guide plate, and the FPC lamp glue is bonded and covers the top of the LED lamp.

5. The backlight source with a compact and stable structure according to claim 4, characterized in that: The backlight module also includes light shielding glue; the light shielding glue is bonded to the top of the iron frame, the glue frame and around the top of the upper brightness enhancement film; the light shielding glue is bonded and covered on the top of the FPC lamp glue.

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