Backlight module structure with narrow frame and capable of preventing light leakage

Abstract

The utility model relates to a narrow-frame light-leakage-proof backlight module structure, which aims to solve the technical problem that the use is affected due to the fact that light is easy to leak from the glue joint of four sides of a glue frame and the inner wall of a back plate when a light source in the current back plate emits light, and comprises a narrow-frame back plate, a reflector plate, a light guide plate, a diffusion sheet A, a prismatic lens, a diffusion sheet B and a frame, the reflector plate, the light guide plate, the diffusion sheet A, the prismatic lens and the diffusion sheet B are sequentially arranged in the narrow frame back plate; the reflector plate, the light guide plate, the diffusion sheet A, the prismatic lens and the diffusion sheet B are attached in sequence; the frame is glued to the mounting port end of the narrow frame back plate; the outer side of the frame is aligned with the outer side of the narrow frame back plate mounting opening end; the bottom of the four sides of the frame is sleeved with square abutting pieces, the square abutting pieces are matched with the inner side wall of the narrow frame back plate in an abutting mode, the frame is abutted in advance through the square abutting pieces, the frame is positioned, meanwhile, the connecting positions of the narrow frame back plate and the four sides of the frame are blocked, and light leakage is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of backlight modules, in particular to a backlight module structure with a narrow frame and light leakage prevention. Background Art

[0002] The backlight module is one of the key components of the LCD panel. Its function is to provide sufficient brightness and evenly distributed light so that it can display images normally. The backlight module is a light source located behind the LCD, and its luminous effect will directly affect the visual effect of the LCD display module. The liquid crystal itself does not emit light, and it displays graphics or characters as a result of its modulation of light.

[0003] The outer glue frame on the backlight module is the outermost layer of the backlight module. The four sides of the glue frame are glued to the inner wall of the back panel by glue. The existing glue joints between the four sides of the glue frame and the inner wall of the back panel are not completely tight, but are fixed by transparent glue. When the light source in the back panel emits bright light, it is easy to leak light from the glue joints between the four sides of the glue frame and the inner wall of the back panel, affecting use.

[0004] In view of this, we propose a backlight module structure with a narrow frame and anti-light leakage. Utility Model Content

[0005] The purpose of the utility model is to overcome the deficiencies of the prior art, meet actual needs, and provide a backlight module structure with a narrow frame and anti-light leakage, so as to solve the technical problem that when the light source in the current back plate emits bright light, light leaks easily from the glue joints between the four sides of the glue frame and the inner wall of the back plate, thus affecting use.

[0006] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is: designing a narrow frame anti-light leakage backlight module structure, including a narrow frame back plate, a reflective sheet, a light guide plate, a diffusion sheet A, a prism sheet, a diffusion sheet B and a frame;

[0007] The reflective sheet, the light guide plate, the diffusion sheet A, the prism sheet and the diffusion sheet B are sequentially arranged in the narrow frame back plate;

[0008] Wherein, the reflective sheet, light guide plate, diffusion sheet A, prism sheet and diffusion sheet B are laminated in sequence;

[0009] The frame is glued to the mounting opening end of the narrow frame back panel;

[0010] Wherein, the outer side of the frame is aligned with the outer side of the mounting opening of the narrow frame back panel;

[0011] Wherein, square abutment pieces are sleeved on the bottom of the four sides of the frame, and the square abutment pieces are abutted and matched with the inner side walls of the narrow frame back plate.

[0012] Preferably, the cross section of the square abutment piece adopts an arc-shaped structure design, and the arched end of the square abutment piece abuts and cooperates with the square slot opened on the top of the inner side wall of the narrow frame back plate;

[0013] Wherein, the arched end of the square abutment piece is matched with the square slot.

[0014] Preferably, square grooves are formed at the bottoms of the four sides of the frame, the square abutment piece is arranged inside the square abutment piece, and the arched end of the square abutment piece exceeds the square groove.

[0015] Preferably, the top of the inner wall of the frame is configured as a square inclined surface B, and the inner wall of the narrow frame back plate installation opening end is configured as a square inclined surface A;

[0016] Wherein, the square bevel A and the square bevel B form a glue groove.

[0017] Preferably, a gap is left between the inner side wall of the narrow frame back plate below the square inclined surface A and the inner wall of the frame below the square inclined surface B.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1. The utility model has the advantage of providing a square abutment sheet to pre-abut below the glue joints between the narrow frame back plate and the four sides of the frame, thereby positioning the frame and blocking the connection between the narrow frame back plate and the four sides of the frame without light leakage. This solves the problem that when the light source in the back plate emits bright light, light leaks from the glue joints between the four sides of the glue frame and the inner wall of the back plate, thus affecting use.

[0020] 2. The utility model has the advantages of increasing the amount of adhesive liquid by setting the square bevel B and the square bevel A, and forming a triangular surface after the adhesive liquid is solidified, so that the adhesive bonding is stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the exploded structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the cross-sectional structure of the framework of the utility model;

[0023] Figure 3 For the utility model Figure 2 A magnified schematic diagram of point A;

[0024] Figure 4 This is a schematic cross-sectional structure diagram of a narrow frame back panel of the utility model;

[0025] Figure 5 For the utility model Figure 4 An enlarged schematic diagram of point B;

[0026] In the figure: 1. narrow frame back panel; 2. reflector; 3. light guide plate; 4. diffuser A; 5. prism sheet; 6. diffuser B; 7. frame;

[0027] 101. square card slot; 102. square slope A;

[0028] 701. Square abutment piece; 702. Square groove; 703. Square slope B. DETAILED DESCRIPTION

[0029] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0030] Embodiment 1: A backlight module structure with a narrow frame and light leakage prevention, see Figures 1 to 5 , including a narrow frame back plate 1, a reflective sheet 2, a light guide plate 3, a diffusion sheet A4, a prism sheet 5, a diffusion sheet B6 and a frame 7;

[0031] The reflective sheet 2, the light guide plate 3, the diffuser A4, the prism sheet 5 and the diffuser B6 are arranged in sequence in the narrow frame back panel 1; wherein the reflective sheet 2, the light guide plate 3, the diffuser A4, the prism sheet 5 and the diffuser B6 are fitted in sequence; the frame 7 is glued to the mounting end of the narrow frame back panel 1; wherein the outer side of the frame 7 is aligned with the outer side of the mounting end of the narrow frame back panel 1; wherein the four sides of the frame 7 are sleeved with square abutment sheets 701 at the bottom, and the square abutment sheets 701 abut against the inner side wall of the narrow frame back panel 1.

[0032] The utility model has the advantage of providing a square abutment piece 701, which performs a pre-abutment below the four sides of the narrow frame back panel 1 and the frame 7 by means of the square abutment piece 701, and blocks the four sides of the connection between the narrow frame back panel 1 and the frame 7 while positioning the frame 7, thereby preventing light leakage. This solves the problem that when the light source in the back panel emits bright light, light leaks from the four sides of the glue frame and the inner wall of the back panel, thus affecting use.

[0033] Specifically, the cross section of the square abutment piece 701 adopts an arc-shaped structure design, and the arched end of the square abutment piece 701 abuts and cooperates with the square card slot 101 opened on the top of the inner side wall of the narrow frame back plate 1; wherein, the arched end of the square abutment piece 701 is adapted to the square card slot 101.

[0034] The arc-shaped square abutment piece 701 can be bent better when the frame 7 is inserted, and does not affect the insertion positioning of the frame 7.

[0035] Furthermore, square grooves 702 are formed at the bottom of four sides of the frame 7 , and the square abutting piece 701 is arranged in the square abutting piece 701 , and the arched end of the square abutting piece 701 exceeds the square groove 702 .

[0036] The square groove 702 abuts against the arched end of the square abutting piece 701 to position the frame 7 .

[0037] Furthermore, the top of the inner wall of the frame 7 is configured as a square slope B703, and the inner wall of the mounting end of the narrow frame back panel 1 is configured as a square slope A102; wherein the square slope A102 and the square slope B703 form a glue groove.

[0038] The utility model has the advantages of increasing the amount of bonding glue by arranging the square bevel B703 and the square bevel A102, and forming a triangular surface after the glue is solidified, so that the bonding is stable.

[0039] It is worth noting that there is a gap between the inner wall of the narrow frame back panel 1 below the square bevel A102 and the inner wall of the frame 7 below the square bevel B703, and the glue penetrates into the gap and solidifies, making the bonding between the narrow frame back panel 1 and the frame 7 more stable.

[0040] Working principle: Using the device of the utility model, the reflective sheet 2, the light guide plate 3, the diffuser A4, the prism sheet 5 and the diffuser B6 are fixed in sequence in the narrow frame back plate 1, and the frame 7 is inserted into the installation end of the narrow frame back plate 1. During the insertion process, the square abutment sheet 701 is squeezed by the inner wall of the narrow frame back plate 1 and bends toward the square groove 702 until the arched end of the square abutment sheet 701 corresponds to the square card slot 101, and the square abutment sheet 701 rebounds, and the arched end of the square abutment sheet 701 is inserted into the square card slot 101 to pre-position the frame 7. Glue is injected into the glue groove formed by the square bevel B703 and the square bevel A102, and the glued glue solidifies to form a triangular surface stable glue connection, and the glue penetrates into the gap and solidifies.

[0041] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A backlight module structure with a narrow frame and light leakage prevention, characterized in that: include: Narrow frame back panel (1); A reflective sheet (2), a light guide plate (3), a diffusion sheet A (4), a prism sheet (5) and a diffusion sheet B (6) are sequentially arranged in the narrow frame back panel (1); The reflective sheet (2), the light guide plate (3), the diffusion sheet A (4), the prism sheet (5) and the diffusion sheet B (6) are laminated in sequence; A frame (7) is glued to the mounting end of the narrow frame back plate (1); Wherein, the outer side of the frame (7) is aligned with the outer side of the mounting opening of the narrow frame back panel (1); The bottom of the four sides of the frame (7) are sleeved with square abutment pieces (701), and the square abutment pieces (701) abut against the inner side wall of the narrow frame back plate (1).

2. A backlight module structure with a narrow frame and light leakage prevention as claimed in claim 1, characterized in that: The cross section of the square abutment piece (701) is designed with an arc-shaped structure, and the arched end of the square abutment piece (701) abuts and cooperates with the square slot (101) provided on the top of the inner side wall of the narrow frame back plate (1); Wherein, the arched end of the square abutment piece (701) is adapted to the square slot (101).

3. A narrow frame light leakage prevention backlight module structure as claimed in claim 2, characterized in that: The bottom of the four sides of the frame (7) are provided with square grooves (702), the square abutment piece (701) is arranged in the square abutment piece (701), and the arched end of the square abutment piece (701) exceeds the square groove (702).

4. The narrow frame light leakage prevention backlight module structure according to claim 1, characterized in that: The top of the inner wall of the frame (7) is configured as a square inclined surface B (703), and the inner wall of the mounting opening end of the narrow frame back plate (1) is configured as a square inclined surface A (102); Wherein, the square inclined surface A (102) and the square inclined surface B (703) form a glue groove.

5. A narrow frame light leakage prevention backlight module structure as claimed in claim 4, characterized in that: A gap is left between the inner wall of the narrow frame back plate (1) below the square inclined surface A (102) and the inner wall of the frame (7) below the square inclined surface B (703).

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