Large-size backlight adhesive iron stand, backlight module and display module

Abstract

The utility model discloses a large -size back light glue frame, back light module and display module relate to the field of display module, and back light glue frame includes iron stand, and iron stand includes bottom wall and baffle wall, the baffle wall is folded to the outside direction, makes baffle wall form double edge structure, the utility model discloses the baffle wall on the iron stand in back light module is folded to the outside direction and forms double edge structure, has improved the overall stress intensity of iron stand, does not influence the overall structural size of back light module, and simultaneously does not need to do the baffle wall of glue frame, does not have the design of glue frame gap, and stress is not easy to concentrate, and back light is not easy to deform, can improve the problem of screen display MURA, is applicable to large -size narrow frame's display equipment, has improved the display effect of display module, and further improved product competitiveness.

Description

Technical Field

[0001] This utility model relates to the field of display module technology, and in particular to a large-size backlight adhesive frame, a backlight module, and a display module. Background Technology

[0002] Currently, thin and light electronic display products with narrow bezels are popular in the market. Patent application number CN201821832497.3 discloses a backlight module comprising a lower housing, a light strip, a diaphragm assembly, and a middle frame. The light strip is disposed on the inner side of the lower housing. A support platform is disposed on the inner bottom surface of the lower housing near the light strip. The diaphragm assembly is disposed inside the lower housing and supported by the support platform. A positioning post is also disposed on the inner bottom surface of the lower housing. Positioning holes matching the positioning post are provided on both the diaphragm assembly and the middle frame. The positioning post passes through the positioning hole of the diaphragm assembly and extends into the positioning hole of the middle frame. The middle frame is mounted on the lower housing and presses against the diaphragm assembly. This solution, by designing a support platform and positioning post structure in the backlight module, combined with the use of buffer pads, solves the problem of unstable diaphragm assembly fixation in large-size narrow-bezel side-lit backlight modules, achieving more stable installation and better light efficiency. However, the narrow-bezel, ultra-thin display structure makes the glass screen prone to deformation under stress, causing display MURA (mold) issues, especially in backlights with adhesive frame walls. To prevent uneven adhesive filling, material shortages, and deformation, openings are often made at certain intervals in the adhesive frame (e.g., Figure 1 As shown, this reduces the difficulty of injection molding. However, because the backlight is very thin and the baffle is very long and thin, the notch on the actual finished baffle will approximate the fulcrum M on the lever, and the two sides are prone to deformation under force, resulting in MURA of the glass display. Therefore, this utility model discloses a large-size backlight adhesive frame, a backlight module, and a display module to solve the above problems. Utility Model Content

[0003] Based on this, it is necessary to address the aforementioned technical problems by providing a large-size backlight frame, backlight module, and display module. By folding the upper wall of the frame in the backlight module outward to form a double-folded edge structure, the overall strength of the frame is improved without affecting the overall structural dimensions of the backlight module. Furthermore, the absence of a frame wall and gaps in the frame design reduces stress concentration and backlight deformation, thus improving the MURA (Mud Reflection and Refraction) problem in screen display. This design is suitable for large-size, narrow-bezel display devices, enhancing the display effect of the display module and thereby increasing product competitiveness.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A large-size backlight adhesive iron frame includes an iron frame, the iron frame including a bottom wall and a baffle wall, the baffle wall being folded outwards to form a double-folded edge structure.

[0006] As a preferred embodiment of the large-size backlit adhesive iron frame provided by this utility model, a backlight source is provided along one of the long sides of the iron frame, and the double-folded edge structure is provided on the other three sides of the iron frame.

[0007] As a preferred embodiment of the large-size backlit adhesive iron frame provided by this utility model, the backlight source includes a backlight FPC, and the main body of the backlight FPC is provided with a plurality of equally spaced LED lights along the length direction of the iron frame.

[0008] In a preferred embodiment of the large-size backlight adhesive iron frame provided by this utility model, the angle at which the baffle wall folds outward is 180°.

[0009] In a preferred embodiment of the large-size backlight adhesive iron frame provided by this utility model, the lower end of the bent baffle is higher than the bottom surface of the iron frame.

[0010] As a preferred embodiment of the large-size backlight adhesive iron frame provided by this utility model, it also includes an adhesive frame, which is disposed inside the iron frame and is attached to the iron frame.

[0011] In a preferred embodiment of the large-size backlight adhesive frame provided by this utility model, the outer side of the adhesive frame is flush with the outer side of the folded-over wall of the iron frame.

[0012] As a preferred embodiment of the large-size backlight adhesive frame provided by this utility model, the adhesive frame and the iron frame are an integral structure.

[0013] A backlight module includes the aforementioned backlight adhesive frame, wherein an adhesive frame is provided inside the frame, and a reflective film, a light guide plate, a diffusion film, a lower brightness enhancement film, an upper brightness enhancement film, and a light-shielding adhesive are arranged sequentially from bottom to top inside the frame.

[0014] A display module comprising the aforementioned backlight module.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The large-size backlight adhesive frame, backlight module and display module provided by the present invention improve the overall strength of the iron frame by folding the upper wall of the iron frame in the backlight module outward to form a double-folded edge structure, without affecting the overall structural size of the backlight module. At the same time, there is no need to make the wall of the adhesive frame, and the design without the adhesive frame gap is not easy to concentrate the force, and the backlight is not easy to deform. It can improve the problem of MURA in screen display, and is suitable for large-size narrow-bezel display devices, improving the display effect of the display module, thereby improving the product competitiveness. Attached Figure Description

[0016] To more clearly illustrate the solutions in this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a structural diagram of an existing large-size backlight adhesive iron frame;

[0018] Figure 2 A schematic plan view of the overall structure of the large-size backlight adhesive iron frame provided by this utility model;

[0019] Figure 3 A three-dimensional schematic diagram of the iron frame and backlight source in the large-size backlight adhesive iron frame provided by this utility model;

[0020] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0021] Figure 5 This is a schematic diagram of the backlight module structure provided by this utility model.

[0022] The markings in the diagram are explained as follows:

[0023] 1. Iron frame; 101. Bottom wall; 102. Baffle wall; 2. Glue frame; 3. Backlight; 301. Backlight FPC; 302. LED light; 4. Reflective film; 5. Light guide plate; 6. Diffuse film; 7. Lower brightness enhancement film; 8. Upper brightness enhancement film; 9. Light-shielding adhesive. Detailed Implementation

[0024] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0025] As described in the background section, the narrow-bezel, ultra-thin display structure makes the glass screen prone to deformation under stress, causing display MURA (mold) issues, especially in backlight-mounted displays with adhesive frame walls. To prevent uneven adhesive filling, material shortages, and deformation, openings are often made at certain intervals in the adhesive frame wall (e.g., Figure 1(As shown), to reduce the difficulty of injection molding. However, because the backlight is very thin and the baffle is very long and thin, the notch on the actual finished baffle will be similar to the fulcrum M on the lever, and the two sides are prone to deformation under force, resulting in MURA in the glass display.

[0026] To solve this technical problem, this utility model provides a large-size backlight adhesive frame, a backlight module, and a display module, which are applied in the field of display modules.

[0027] For details, please refer to Figures 2-4 The large-size backlight adhesive iron frame specifically includes an iron frame 1, which includes a bottom wall 101 and a baffle wall 102. The baffle wall 102 is folded outward to form a double-folded edge structure.

[0028] For details, please refer to Figure 5 The backlight module includes the aforementioned backlight adhesive iron frame 1, and an adhesive frame 2 is provided inside the iron frame 1. The iron frame 1 is provided with a reflective film 4, a light guide plate 5, a diffusion film 6, a lower brightness enhancement film 7, an upper brightness enhancement film 8, and a light-shielding adhesive 9 in sequence from bottom to top.

[0029] Specifically, the display module includes the backlight module described above.

[0030] The large-size backlight adhesive frame 1, backlight module, and display module provided by this utility model improve the overall strength of the iron frame 1 by folding the upper baffle 102 of the iron frame 1 in the backlight module outward to form a double-folded edge structure. This does not affect the overall structural size of the backlight module. At the same time, it eliminates the need for the baffle 102 of the adhesive frame 2 and avoids the design of the adhesive frame 2 notch, making it less prone to stress concentration and backlight deformation. This can improve the problem of screen display MURA and is suitable for large-size narrow-bezel display devices, improving the display effect of the display module and thus enhancing product competitiveness.

[0031] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0032] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0033] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0034] Example 1

[0035] Please refer to Figures 2-4This embodiment provides a large-size backlight adhesive iron frame 1, which includes an iron frame 1. The iron frame 1 has a rectangular structure and includes a bottom wall 101 and a baffle wall 102. The baffle wall 102 is folded outward to form a double-folded structure. The baffle wall 102 is folded outward at an angle of 180°, so that the inner sides of the two baffle walls 102 in the double-folded structure are attached together. The lower end of the baffle wall 102 after bending is higher than the bottom surface of the iron frame 1, so as to avoid the lower end of the baffle wall 102 protruding from the bottom surface of the iron frame 1 and hindering the subsequent installation of the backlight module.

[0036] Furthermore, a plastic frame 2 is also provided on the inner side of the iron frame 1. The plastic frame 2 is attached to the iron frame 1, and the outer side of the plastic frame 2 is flush with the outer side of the folded-over wall 102 of the iron frame 1. This reduces the thickness of the plastic frame 2, and the folding of the wall 102 of the iron frame 1 does not affect the overall structural dimensions. To improve the connection strength between the plastic frame 2 and the iron frame 1, as well as processing efficiency, the plastic frame 2 and the iron frame 1 are an integral structure. During injection molding, the plastic frame 2 is directly injection molded onto the iron frame 1.

[0037] Furthermore, a backlight 3 is provided along one of the long sides of the iron frame 1, and a double-folded structure is provided on the other three sides of the iron frame 1. The backlight 3 includes a backlight FPC 301. Several LED lights 302 are evenly distributed along the length of the iron frame 1 on the main body of the backlight FPC 301. The side-lit backlight 3 ensures the amount of light entering the frame and improves the display effect.

[0038] Example 2

[0039] Please refer to Figure 5 This embodiment provides a backlight module, which includes the aforementioned backlight adhesive frame 1. The frame 1 contains an adhesive frame 2. Inside the frame 1, from bottom to top, there are a reflective film 4, a light guide plate 5, a diffuser film 6, a lower brightness enhancement film 7, an upper brightness enhancement film 8, and a light-shielding adhesive 9. The light emitted by the backlight source 3 enters the light guide plate 5 through the light-incident surface of the light guide plate 5. The light diffuser film 6, the lower brightness enhancement film 7, and the upper brightness enhancement film 8 process the light and homogenize it before it is emitted. At the same time, the reflective film 4 reflects the light, thereby improving the light utilization rate.

[0040] Example 3

[0041] This embodiment provides a display module, which includes the backlight module described above. The display module is a large-screen, narrow-bezel display structure that can be applied to large-size LCD TVs, computer monitors, etc.

[0042] The working principle of the large-size backlight adhesive iron frame 1, backlight module and display module provided by this utility model is as follows: By folding the upper baffle 102 of the iron frame 1 in the backlight module outward to form a double-folded edge structure, the overall strength of the iron frame 1 is improved without affecting the overall structural size of the backlight module. At the same time, there is no need to make the baffle 102 of the adhesive frame 2. The design without the notch of the adhesive frame 2 makes it less likely for the stress to be concentrated and the backlight to be less likely to deform. It can improve the problem of MURA in screen display. It is suitable for large-size narrow-bezel display devices, improves the display effect of the display module, and thus improves the product competitiveness.

[0043] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0044] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A large-size backlight adhesive frame, comprising an iron frame and an adhesive frame, wherein the adhesive frame is disposed inside the iron frame and is fitted to the iron frame, characterized in that, The iron frame includes a bottom wall and a baffle wall. The baffle wall is folded outward to form a double-folded edge structure. The outer side of the rubber frame is flush with the outer side of the folded baffle wall of the iron frame.

2. The large-size backlight adhesive frame according to claim 1, characterized in that, A backlight is provided along one of the long sides of the iron frame, and the double-folded edge structure is provided on the other three sides of the iron frame.

3. A large-size backlight adhesive frame according to claim 2, characterized in that, The backlight source includes a backlight FPC, and the main body of the backlight FPC has a number of equally spaced LED lights distributed along the length of the iron frame.

4. A large-size backlight adhesive frame according to claim 1, characterized in that, The angle at which the baffle wall folds outward is 180°.

5. A large-size backlight adhesive frame according to claim 4, characterized in that, The lower end of the bent retaining wall is higher than the bottom surface of the iron frame.

6. A large-size backlight adhesive frame according to claim 1, characterized in that, The rubber frame and the iron frame are an integral structure.

7. A backlight module, characterized in that, Includes the backlight adhesive iron frame as described in any one of claims 1-6, wherein the iron frame is provided with a reflective film, a light guide plate, a diffusion film, a lower brightness enhancement film, an upper brightness enhancement film, and a light-shielding adhesive in sequence from bottom to top.

8. A display module, characterized in that, Includes the backlight module as described in claim 7.

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