Backlight source with light leakage prevention structure

Abstract

The utility model relates to a backlight source with a light leakage prevention structure, which aims to solve the technical problem that defective products exist when plastics are tightly attached or cannot be tightly jointed, and comprises a light source module and a light guide plate, the light source module is arranged on the light guide plate, and the backlight source further comprises a mounting structure; the mounting structure is embedded and matched with the light guide plate and the light source module; the mounting structure comprises a back frame, a back plate and a rubber frame; a back frame and a back plate; the back plate is fixedly arranged on the back side of the back frame; the rubber frame is fixedly arranged on the inner side of the back frame in an attached mode. The light guide plate and the light source module are embedded in the back frame, the outer wall of the light guide plate and the outer wall of the light source module abut against the inner wall of the rubber frame in a matched mode, and the backlight module has the advantages that the rubber frame has certain elasticity, the rubber frame is reversely attached to the light guide plate and the light source module after being squeezed by the light guide plate and the light source module, and attaching is tighter.

Description

Technical Field

[0001] The utility model relates to the technical field of mobile phone backlight sources, in particular to a backlight source with a light leakage prevention structure. Background Art

[0002] The backlight is a light source behind the LCD, and 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.

[0003] The backlight source used in mobile phones is concentrated in the phone casing. If the backlight source leaks light, it will cause light leakage at the edge of the phone. The existing method basically makes the edge of the backlight source close to the edge of the back frame, but the plastics cannot fit tightly together, so there will be defective products.

[0004] In view of this, we propose a backlight source with an anti-light leakage structure. Utility Model Content

[0005] The purpose of the utility model is to overcome the deficiencies of the prior art, meet practical needs, and provide a backlight source with a light leakage prevention structure to solve the current technical problem that plastics are not tightly fitted together and defective products may exist.

[0006] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is: designing a backlight source with an anti-light leakage structure, including a light source module and a light guide plate, the light source module is arranged on the light guide plate, and also includes a mounting structure;

[0007] The mounting structure is embedded and matched with the light guide plate and the light source module;

[0008] The mounting structure includes a back frame, a back plate and a rubber frame;

[0009] Back frame and back panel;

[0010] Wherein, the back plate is fixedly arranged on the back side of the back frame;

[0011] The rubber frame is fixedly mounted on the inner side of the back frame;

[0012] The light guide plate and the light source module are embedded in the back frame, and the outer walls of the light guide plate and the light source module are in abutment with the inner wall of the rubber frame.

[0013] Preferably, two positioning blocks are symmetrically fixed on the back of the light guide plate, and two positioning holes are symmetrically provided on the back plate, and the positioning blocks are inserted and matched with the positioning holes.

[0014] Preferably, the insertion end of the positioning block is designed to be a trapezoidal structure, and the positioning block is adapted to the positioning hole.

[0015] Preferably, a light blocking component is arranged outside the rubber frame;

[0016] The light blocking component includes a square rubber strip A and a square rubber strip B;

[0017] The transverse end of the square rubber strip A is fixedly connected to the outer side of the rubber frame;

[0018] The square rubber strip B is fixedly arranged at the longitudinal end of the square rubber strip A;

[0019] Wherein, the cross section of the square rubber strip B is L-shaped;

[0020] The cross section of the square rubber strip B is arc-shaped, the square rubber strip B is bent inward, and the outer end of the square rubber strip B is abutted against the outer edge of the light source module;

[0021] The square rubber strip B is covered at the position where the light source module and the rubber frame are in close contact.

[0022] Preferably, the inner end of the outer side of the rubber frame is configured as an inclined surface.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] 1. The utility model provides a back frame, a back plate and a rubber frame. The rubber frame has a certain elasticity. After being squeezed by the light guide plate and the light source module, the rubber frame sticks to the light guide plate and the light source module in reverse, and the fit is tighter. This solves the problem that plastics cannot fit tightly together and defective products may occur.

[0025] 2. The utility model has the advantages of positioning the light guide plate embedded in the back frame by providing the positioning block and the positioning hole, keeping the light guide plate stable, and facilitating the subsequent gluing of the light guide plate and the light source module.

[0026] 3. The utility model has the advantage of sealing the gap between the light source module and the rubber frame at the place where they are in close contact by arranging the square rubber strips A and B, thereby further enhancing the effect of preventing light leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0028] Figure 2 This is a schematic diagram of the connection structure of the light source module and the light guide plate of the utility model;

[0029] Figure 3 This is a schematic diagram of the installation structure of the utility model;

[0030] Figure 4It is a cross-sectional schematic diagram of the installation structure of the utility model;

[0031] Figure 5 For the utility model Figure 4 A magnified schematic diagram of point A;

[0032] In the figure: 1. Light source module; 2. Mounting structure; 3. Light guide plate; 4. Positioning block;

[0033] 201, back frame; 202, back plate; 203, rubber frame; 204, light shielding component;

[0034] 2021, positioning hole;

[0035] 2031. Incline;

[0036] 2041. Square rubber strip A. 2042. Square rubber strip B. DETAILED DESCRIPTION

[0037] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0038] Embodiment 1: A backlight source with a light leakage prevention structure, see Figures 1 to 5 , including a light source module 1 and a light guide plate 3, wherein the light source module 1 is arranged on the light guide plate 3, and further including a mounting structure 2; the mounting structure 2 is embedded and matched with the light guide plate 3 and the light source module 1;

[0039] The mounting structure 2 includes a back frame 201, a back plate 202 and a rubber frame 203;

[0040] A back frame 201 and a back plate 202; wherein the back plate 202 is fixed on the back side of the back frame 201; a rubber frame 203 is fixedly mounted on the inner side of the back frame 201; wherein the light guide plate 3 and the light source module 1 are embedded in the back frame 201, and the outer walls of the light guide plate 3 and the light source module 1 are in abutment with the inner wall of the rubber frame 203.

[0041] The utility model provides a back frame 201, a back plate 202 and a rubber frame 203, wherein the rubber frame 203 has a certain elasticity. After being squeezed by the light guide plate 3 and the light source module 1, the rubber frame 203 sticks to the light guide plate 3 and the light source module 1 in reverse direction, and has the advantage of being more closely fitted, thereby solving the problem that defective products may occur when plastics are tightly fitted but not tightly fitted to each other.

[0042] Specifically, two positioning blocks 4 are symmetrically fixed on the back of the light guide plate 3 , and two positioning holes 2021 are symmetrically opened on the back plate 202 , and the positioning blocks 4 are inserted and matched with the positioning holes 2021 .

[0043] The utility model has the advantages of positioning the light guide plate 3 embedded in the back frame 201 by providing the positioning block 4 and the positioning hole 2021 , keeping the light guide plate 3 stable, and facilitating the subsequent gluing of the light guide plate 3 and the light source module 1 .

[0044] Furthermore, the insertion end of the positioning block 4 is designed in a trapezoidal structure, and the positioning block 4 is adapted to the positioning hole 2021. The insertion end of the trapezoidal positioning block 4 is smoothly inserted into the positioning hole 2021.

[0045] Furthermore, a light blocking component 204 is arranged outside the rubber frame 203;

[0046] The light shielding component 204 includes a square rubber strip A2041 and a square rubber strip B2042;

[0047] The lateral end of the square rubber strip A2041 is fixedly connected to the outer side of the rubber frame 203; the square rubber strip B2042 is fixedly arranged at the longitudinal end of the square rubber strip A2041; wherein, the cross section of the square rubber strip B2042 is L-shaped; wherein, the cross section of the square rubber strip B2042 is arc-shaped, the square rubber strip B2042 is bent inward, and the outer end of the square rubber strip B2042 is abutted against the outer edge of the light source module 1; wherein, the square rubber strip B2042 is covered at the place where the light source module 1 and the rubber frame 203 are in close contact.

[0048] The utility model has the advantage of sealing the gap between the light source module 1 and the rubber frame 203 at the place where they are in close contact by arranging the square rubber strip A2041 and the square rubber strip B2042, thereby further enhancing the effect of preventing light leakage.

[0049] It is worth noting that the inner end of the outer side of the rubber frame 203 is configured as an inclined surface 2031, so that there is enough space for the square rubber strip B2042 to be squeezed.

[0050] Working principle: Using the device of the utility model, the light guide plate 3 and the light source module 1 are embedded into the back frame 201, and the square rubber strip B2042 is squeezed by the embedded light guide plate 3 and bent toward the inclined surface 2031 until the light guide plate 3 and the light source module 1 are completely entered into the back frame 201. At this time, the positioning block 4 is correspondingly inserted into the positioning hole 2021, and the rubber frame 203 is pressed against the light guide plate 3 and the light source module 1 after being squeezed by the light guide plate 3 and the light source module 1, and the fit is tighter. After the square rubber strip B2042 rebounds, the outer end of the square rubber strip B2042 abuts against the outer edge of the light source module 1, and the square rubber strip B2042 seals the gap where the light source module 1 and the rubber frame 203 are closely attached to prevent light leakage.

[0051] 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 source with an anti-light leakage structure, comprising a light source module (1) and a light guide plate (3), wherein the light source module (1) is arranged on the light guide plate (3), characterized in that: Also includes: A mounting structure (2) embedded and matched with the light guide plate (3) and the light source module (1); The mounting structure (2) comprises: A back frame (201) and a back plate (202); Wherein, the back plate (202) is fixedly arranged on the back side of the back frame (201); A rubber frame (203) is fixedly mounted on the inner side of the back frame (201); The light guide plate (3) and the light source module (1) are embedded in the back frame (201), and the outer walls of the light guide plate (3) and the light source module (1) are in abutment with the inner wall of the rubber frame (203).

2. The backlight source with a light leakage prevention structure according to claim 1, characterized in that: Two positioning blocks (4) are symmetrically fixed on the back of the light guide plate (3), two positioning holes (2021) are symmetrically provided on the back plate (202), and the positioning blocks (4) are inserted and matched with the positioning holes (2021).

3. The backlight source with a light leakage prevention structure according to claim 2, characterized in that: The insertion end of the positioning block (4) is designed to be a trapezoidal structure, and the positioning block (4) is adapted to the positioning hole (2021).

4. The backlight source with a light leakage prevention structure according to claim 1, characterized in that: A light blocking component (204) is arranged outside the rubber frame (203); The light blocking component (204) comprises: A square rubber strip A (2041), the transverse end of which is fixedly connected to the outer side of the rubber frame (203); A square rubber strip B (2042) is fixedly mounted on a longitudinal end of the square rubber strip A (2041); Wherein, the cross section of the square rubber strip B (2042) is L-shaped; The cross section of the square rubber strip B (2042) is arc-shaped, the square rubber strip B (2042) is bent inward, and the outer end of the square rubber strip B (2042) is in abutment with the outer edge of the light source module (1); The square rubber strip B (2042) is covered at the position where the light source module (1) and the rubber frame (203) are in close contact.

5. The backlight source with a light leakage prevention structure according to claim 4, characterized in that: The inner end of the outer side of the rubber frame (203) is configured as an inclined surface (2031).

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