Backlight structure for reducing thickness of backlight product

Abstract

The utility model discloses a backlight structure capable of reducing the thickness of a backlight product, which comprises a backlight iron stand, wherein the interior of the backlight iron stand is provided with a mounting cavity; the reflector plate is arranged at the bottom of the mounting cavity; the light guide plate is arranged in the mounting cavity and located above the reflector plate, and a glass module is arranged above the backlight iron stand and used for being matched with the light guide plate; the reflector plate comprises a protective layer, a silver coating and an adhesive; the reflector plate further comprises a white nickel layer, and the white nickel layer is plated on the bottom wall of the backlight iron stand and used for being bonded with the adhesive above the white nickel layer. According to the backlight structure capable of reducing the thickness of the backlight product, in a laminated structure of a conventional reflector plate, white PET of the reflector plate is omitted, the thickness can be reduced by about 0.05 mm by omitting the white PET, and the white nickel layer with the thickness of about 0.002 mm is plated on the inner surface of the backlight iron frame to replace the PET of the reflector plate, so that the thickness of the backlight product is reduced, and the thickness of the backlight product is reduced. Therefore, the overall thickness of the backlight module can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of backlights, in particular to a backlight structure for reducing the thickness of a backlight product. Background Art

[0002] Backlighting is a form of lighting in the electronics industry, commonly used in LCD displays. The difference between backlighting and frontlighting is that backlighting illuminates from the side or rear, while frontlighting, as the name suggests, illuminates from the front. They are used to increase illumination in low-light environments and brightness on computer monitors and LCD screens, generating light in a similar manner to CRT displays.

[0003] like Figure 8 and Figure 9 As shown, the current backlight structure mainly includes the following layers: light-shielding glue, light-enhancing film, diffusion film, light guide plate, and reflective sheet. The thickness of the old reflective sheet 1-1 is mainly composed of: protective layer 1-2, silver-plated layer 1-3, adhesive 1-4, and white PET 1-5. However, due to the increasing demand for thinner mobile phone products, the thickness of the display module also needs to be made thinner. For this reason, this patent proposes a backlight structure that reduces the thickness of the backlight product to reduce the overall module thickness of the backlight. Utility Model Content

[0004] Based on this, it is necessary to provide a backlight structure that reduces the thickness of the backlight product to address the above technical problems, cancel the traditional white PET on the reflective sheet, and replace it with a white nickel layer to reduce the overall structural thickness of the emitting sheet.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A backlight structure for reducing the thickness of a backlight product, comprising:

[0007] A backlight iron frame having a mounting cavity therein;

[0008] a reflective sheet, which is arranged at the bottom of the installation cavity;

[0009] A light guide plate is provided inside the mounting cavity and above the reflective sheet. A glass module is provided above the backlight iron frame to cooperate with the light guide plate.

[0010] The reflective sheet includes a protective layer, a silver-plated layer and an adhesive;

[0011] Wherein, the reflective sheet further comprises a white nickel layer, and the white nickel layer is plated on the bottom wall of the backlight iron frame for bonding with the adhesive above.

[0012] Furthermore, the top of the protective layer is bonded to the light guide plate, and the protective layer, the silver-plated layer and the adhesive are bonded and connected in sequence from top to bottom.

[0013] Furthermore, the thickness of the white nickel layer is 0.002 mm.

[0014] Furthermore, positioning structures are provided around the light guide plate.

[0015] Furthermore, the positioning structure includes a positioning protrusion, and the positioning protrusion is connected to the bottom wall of the backlight iron frame;

[0016] Wherein, the height of the positioning protrusion is the same as the height of the reflector.

[0017] Furthermore, a guiding slope is provided on the inner side of the positioning protrusion.

[0018] Furthermore, a side limiting boss extends upward from the top of the positioning protrusion, and the inner side of the side limiting boss is in contact with the outer side of the light guide plate;

[0019] Wherein, the height of the side limiting boss is one tenth of the height of the light guide plate.

[0020] Furthermore, an L-shaped avoidance groove is opened on the inner side of the side limiting boss, and a protective pad is arranged in the L-shaped avoidance groove.

[0021] Furthermore, the guide slope extends toward the bottom of the positioning protrusion and forms a side limiting portion between the guide slope and the bottom wall;

[0022] The height of the side limiting portion is greater than the height of the white nickel layer.

[0023] Furthermore, a diffusion film, a light-enhancing film and a light-shielding adhesive are sequentially provided on the top of the light guide plate;

[0024] The diffusion film, the brightness enhancement film and the light shielding glue are sequentially arranged from bottom to top, and finally the glass module installed on the surface of the backlight iron frame is in contact with the light shielding glue below for assembly.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The utility model provides a backlight structure for reducing the thickness of backlight products. In the laminated structure of conventional reflective sheets, the white PET layer of the reflective sheet is eliminated. This can reduce the thickness by about 0.05mm. A white nickel layer with a thickness of about 0.002mm is plated on the inner surface of the backlight iron frame to replace the PET reflective sheet. This can not only reduce the overall thickness of the backlight module, but also allow the white nickel layer to properly reflect light back to the light guide plate, thereby minimizing light loss.

[0027] The positioning structure can support the upper light guide plate to avoid the downward movement of the upper components and the resulting damage to the reflective sheet. It can also protect the contact surface between the light guide plate and the protective layer to avoid the actual light guiding effect being affected by the compression between the bottom of the light guide plate and the reflective sheet below.

[0028] Since the white nickel layer and other structures of the reflective sheet in this application are designed as separate parts, when the other components of the reflective sheet are placed and installed after the white nickel layer is plated, they can be guided by the design of the guide slope so that they can be accurately aligned with the white nickel layer below to achieve precise assembly. In the subsequent use process, the horizontal position of the reflective sheet can also be limited by the design of the side limit part to avoid displacement with the white nickel layer at the bottom and affect the subsequent use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram of the structure of a backlight structure for reducing the thickness of a backlight product provided by the present invention;

[0030] Figure 2 A schematic diagram of the reflective sheet structure of the backlight structure for reducing the thickness of the backlight product provided by the utility model;

[0031] Figure 3 The utility model provides a backlight structure for reducing the thickness of the backlight product. Figure 1 A in the middle is an enlarged structural diagram;

[0032] Figure 4 A schematic diagram of the positioning structure of the backlight structure for reducing the thickness of the backlight product provided by the utility model;

[0033] Figure 5 A schematic diagram of the positioning bump structure of the backlight structure for reducing the thickness of the backlight product provided by the present invention;

[0034] Figure 6 The utility model provides a backlight structure for reducing the thickness of the backlight product. Figure 5 The enlarged structural diagram at B in the middle;

[0035] Figure 7 This is a schematic diagram of the protective pad structure of the backlight structure for reducing the thickness of the backlight product provided by the utility model;

[0036] Figure 8 This is a structural diagram of one of the conventional backlight products in the background technology provided by the present utility model;

[0037] Figure 9 This is a schematic structural diagram of a second conventional backlight product in the background technology provided by the present invention.

[0038] The markings in the figure are as follows:

[0039] Backlight iron frame 1, mounting cavity 11;

[0040] Reflective sheet 2, protective layer 21, silver plating layer 22, adhesive 23, white nickel layer 24;

[0041] Light guide plate 3, diffusion film 31, brightness enhancement film 32, light shielding glue 33;

[0042] Positioning structure 4, positioning protrusion 41, guiding slope 42, limiting boss 43, L-shaped avoidance groove 44, protection pad 45, side limiting part 46;

[0043] Glass module 5. DETAILED DESCRIPTION

[0044] In order to help those skilled in the art better understand the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0045] As described in the background technology, Figure 8 and Figure 9 As shown, the current backlight structure mainly includes the following layers: light-shielding glue, light-enhancing film, diffusion film, light guide plate, and reflective sheet. The thickness of the old reflective sheet 1-1 is mainly composed of: protective layer 1-2, silver-plated layer 1-3, adhesive 1-4, and white PET 1-5. However, due to the increasing demand for thinner mobile phone products, the thickness of the display module also needs to be made thinner. For this reason, this patent proposes a backlight structure that reduces the thickness of the backlight product to reduce the overall module thickness of the backlight.

[0046] In order to solve this technical problem, the utility model provides a backlight structure for reducing the thickness of a backlight product, which is applied to a backlight module.

[0047] Specifically, please refer to Figures 1-9 The backlight structure for reducing the thickness of the backlight product specifically includes:

[0048] A backlight iron frame 1 having a mounting cavity 11 therein;

[0049] A reflective sheet 2, which is provided at the bottom of the installation cavity 11;

[0050] A light guide plate 3 is provided inside the mounting cavity 11 and above the reflective sheet 2. A glass module 5 is provided above the backlight iron frame 1 to cooperate with the light guide plate 3.

[0051] The reflective sheet 2 includes a protective layer 21, a silver-plated layer 22 and an adhesive 23;

[0052] The reflective sheet 2 further includes a white nickel layer 24 , which is plated on the bottom wall of the backlight iron frame 1 for bonding with the adhesive 23 above.

[0053] The utility model provides a backlight structure for reducing the thickness of a backlight product. In the laminated structure of a conventional reflective sheet 2, the white PET layer of the reflective sheet is eliminated. Eliminating this layer of white PET can reduce the thickness by about 0.05 mm, and a white nickel layer 24 with a thickness of about 0.002 mm is plated on the inner surface of the backlight iron frame 1 to replace the role of the reflective sheet PET. This can not only reduce the overall thickness of the backlight module, but also allow the white nickel layer 24 to normally emit light back to the light guide plate 3, thereby minimizing light loss.

[0054] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0055] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions therein can be combined with each other.

[0056] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0057] Please refer to Figure 1 、 Figure 2 and Figure 3 As shown, a backlight structure for reducing the thickness of a backlight product comprises: a backlight iron frame 1, wherein a mounting cavity 11 is provided inside the backlight iron frame 1;

[0058] A reflective sheet 2, which is provided at the bottom of the installation cavity 11;

[0059] A light guide plate 3 is provided inside the mounting cavity 11 and above the reflective sheet 2. A glass module 5 is provided above the backlight frame 1 for cooperating with the light guide plate 3. A diffusion film 31, a light-enhancing film 32, and a light-shielding adhesive 33 are sequentially provided on the top of the light guide plate 3. The diffusion film 31, the light-enhancing film 32, and the light-shielding adhesive 33 are sequentially arranged from bottom to top, so that the glass module 5 mounted on the surface of the backlight frame 1 is finally in contact with the light-shielding adhesive 33 below.

[0060] The reflective sheet 2 includes a protective layer 21, a silver-plated layer 22, and an adhesive 23. The reflective sheet 2 also includes a white nickel layer 24, which is plated on the bottom wall of the backlight iron frame 1 to bond with the adhesive 23 above.

[0061] The top of the protective layer 21 is bonded to the light guide plate 3, and the protective layer 21, the silver-plated layer 22 and the adhesive 23 are bonded and connected in sequence from top to bottom;

[0062] As a further optimization of this embodiment: the thickness of the white nickel layer 24 is 0.002 mm;

[0063] In this embodiment, the white PET layer in the traditional reflective sheet 2 is eliminated, and instead a white nickel layer 24 is plated on the bottom wall of the backlight iron frame 1. Since the thickness of traditional white PET is usually 0.05 mm, and the thickness required for plating the white nickel layer 24 is only 0.002 mm, the design of plating the white nickel layer 24 in this embodiment can reduce the thickness by 0.048 mm to reduce the overall thickness of the mold body.

[0064] The backlight structure of the backlight product with reduced thickness provided in Example 1 is further optimized. Specifically, Figure 4 、 Figure 5 and Figure 6 As shown, positioning structures 4 are provided around the light guide plate 3;

[0065] The positioning structure 4 includes a positioning protrusion 41 , and the positioning protrusion 41 is connected to the bottom wall of the backlight iron frame 1 . The height of the positioning protrusion 41 is the same as that of the reflector 2 .

[0066] The positioning structure 4 is designed to support the upper light guide plate 3, preventing the upper component from moving downward and causing damage to the reflective sheet 2. It also protects the contact surface between the light guide plate 3 and the protective layer 21, preventing the bottom of the light guide plate 3 from being squeezed by the reflective sheet 2 below, thereby affecting the actual light guiding effect.

[0067] As a further optimization of this embodiment: a guide bevel 42 is provided on the inner side of the positioning protrusion 41. Since the white nickel layer 24 and the other structures of the reflector 2 in this application are designed as a separate body, when the other components of the reflector 2 are inserted and installed after the white nickel layer 24 is plated, they can be guided by the design of the guide bevel 42 so that they can be accurately aligned with the white nickel layer 24 below to achieve precise assembly.

[0068] The backlight structure of the backlight product with reduced thickness provided in Example 1 or 2 is further optimized, such as Figure 6As shown in the figure, a side limiting boss 43 extends upward from the top of the positioning protrusion 41. The inner side of the side limiting boss 43 is in contact with the outer side of the light guide plate 3. The height of the side limiting boss 43 is one tenth of the height of the light guide plate 3. By designing the limiting boss 43 around the light guide plate 3, the installation position of the light guide plate 3 can be positioned after installation.

[0069] An L-shaped avoidance groove 44 is provided on the inner side of the side limiting boss 43, and a protective pad 45 is provided in the L-shaped avoidance groove 44. Through the design of the L-shaped avoidance groove 44 and the protective pad 45, the light guide plate 3 can be limited on all sides to ensure that the light guide plate 3 will not slide horizontally during subsequent use, thereby not forming sliding friction with the corresponding protective layer 21 below, which is beneficial to the protection of the light guide plate 2 and the protective layer 21 themselves.

[0070] The backlight structure for reducing the thickness of the backlight product provided in Example 3 is further optimized, such as Figure 6 As shown, the guide slope 42 extends toward the bottom of the positioning protrusion 41 and forms a side limiting portion 46 between the guide slope 42 and the bottom wall;

[0071] The height of the side limiting portion 46 is greater than the height of the white nickel layer 24. Through the design of the limiting portion 46, the horizontal position of the reflective sheet 2 can be limited to avoid displacement with the white nickel layer 24 at the bottom and affect the subsequent use effect. At the same time, the reflective sheet 2 after the positioning is restricted will not form sliding friction with the bottom of the light guide plate 3 above, which is beneficial to the protection of the light guide surface of the light guide plate 3 itself and ensures the stability of the white nickel layer 24 in reflecting the light from the bottom of the light guide plate 3.

[0072] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0073] Obviously, the embodiments described above are only some of the embodiments of the present invention, rather than all of the embodiments. The preferred embodiments of the present invention are given in the accompanying drawings, but they do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned specific embodiments, or to make equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the present invention specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of protection of the present invention patent.

Claims

1. A backlight structure for reducing the thickness of a backlight product, characterized in that: It includes: A backlight iron frame (1), wherein a mounting cavity (11) is provided inside the backlight iron frame (1); A reflective sheet (2) disposed at the bottom of the mounting cavity (11); A light guide plate (3) is provided inside the mounting cavity (11) and above the reflective sheet (2); a glass module (5) is provided above the backlight iron frame (1) for cooperating with the light guide plate (3); The reflective sheet (2) comprises a protective layer (21), a silver-plated layer (22), and an adhesive (23); The reflective sheet (2) further comprises a white nickel layer (24), and the white nickel layer (24) is plated on the bottom wall of the backlight iron frame (1) for bonding with the adhesive (23) above.

2. The backlight structure for reducing the thickness of a backlight product according to claim 1, characterized in that: The top of the protective layer (21) is bonded to the light guide plate (3), and the protective layer (21), the silver-plated layer (22) and the adhesive (23) are bonded and connected in sequence from top to bottom.

3. The backlight structure for reducing the thickness of a backlight product according to claim 1, characterized in that: The thickness of the white nickel layer (24) is 0.002 mm.

4. The backlight structure for reducing the thickness of a backlight product according to claim 1, wherein: Positioning structures (4) are provided on all four sides of the light guide plate (3).

5. The backlight structure for reducing the thickness of a backlight product according to claim 4, characterized in that: The positioning structure (4) comprises a positioning protrusion (41), and the positioning protrusion (41) is connected to the bottom wall of the backlight iron frame (1); Wherein, the height of the positioning protrusion (41) is the same as the height of the reflective sheet (2).

6. The backlight structure for reducing the thickness of a backlight product according to claim 5, characterized in that: A guiding inclined surface (42) is provided on the inner side of the positioning protrusion (41).

7. The backlight structure for reducing the thickness of a backlight product according to claim 6, characterized in that: A side limiting boss (43) extends upward from the top of the positioning protrusion (41), and the inner side of the side limiting boss (43) is in contact with the outer side of the light guide plate (3); Wherein, the height of the side limiting boss (43) is one tenth of the height of the light guide plate (3).

8. The backlight structure for reducing the thickness of a backlight product according to claim 7, characterized in that: An L-shaped avoidance groove (44) is provided on the inner side of the side limiting boss (43), and a protection pad (45) is provided in the L-shaped avoidance groove (44).

9. The backlight structure for reducing the thickness of a backlight product according to claim 6, wherein: The guide slope (42) extends toward the bottom of the positioning protrusion (41) and forms a side limiting portion (46) between the guide slope and the bottom wall; The height of the side limiting portion (46) is greater than the height of the white nickel layer (24).

10. The backlight structure for reducing the thickness of a backlight product according to claim 9, characterized in that: A diffusion film (31), a light-enhancing film (32) and a light-shielding adhesive (33) are sequentially provided on the top of the light guide plate (3); The diffusion film (31), the light-enhancing film (32) and the light-shielding glue (33) are sequentially arranged from bottom to top, and finally the glass module (5) mounted on the surface of the backlight iron frame (1) is in contact with the light-shielding glue (33) below for assembly.

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