Middle frame structure, backlight module and display device

Abstract

The utility model discloses a middle frame structure, a backlight module and a display device, and relates to the technical field of backlight modules, the middle frame structure is used for the backlight module, the middle frame structure comprises a middle frame, a bonding piece and a positioning structure, and a mounting surface is formed on the front side of the middle frame; and the sticking piece is stuck on the mounting surface. According to the technical scheme provided by the utility model, the mounting surface is formed on the front side of the middle frame and can be used for bonding of the bonding piece, the bonding piece can be positioned and mounted at the preset position of the middle frame through the positioning structure, the purpose of improving askew pasting of the foam is achieved, and through the arrangement of the positioning structure, the bonding piece can be effectively prevented from being adhered to the middle frame. According to the backlight module, the thickness of the adhesion piece is increased while the contact area between the adhesion piece and the middle frame is actually increased, the traditional design that the adhesion piece is directly thickened is replaced, the problem that the adhesion piece is prone to falling off is solved, and meanwhile the light leakage problem of the backlight module is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of backlight modules, and particularly relates to a middle frame structure, a backlight module and a display device. Background Technique

[0002] In the backlight module industry, since there are many manufacturers producing glass, the warping levels of the displays produced by each manufacturer are different, and the single-piece light leakage levels are inconsistent. In order to improve the light leakage of the glass, it is necessary to thicken the foam on the middle frame. However, if the foam is too thick, it will affect the overall thickness of the module and the thickness of the whole machine. Content of the Utility Model

[0003] The main purpose of the utility model is to provide a middle frame structure, a backlight module and a display device, aiming to realize the purpose of positioning and installing the foam on the middle frame and improving the light leakage problem in the use of the backlight module.

[0004] To achieve the above object, the middle frame structure proposed by the utility model is used for a backlight module, and the middle frame structure includes:

[0005] A middle frame with an installation surface formed on the front side;

[0006] An adhesive member adhered to the installation surface; and,

[0007] A positioning structure disposed on the middle frame and / or the adhesive member for positioning and installing the adhesive member at a preset position of the middle frame.

[0008] In an embodiment, the positioning structure includes a positioning portion and a mating portion that cooperate with each other. Among the positioning portion and the mating portion, one of them is disposed on the installation surface, and the other is disposed on the end surface of the adhesive member opposite to the installation surface.

[0009] In an embodiment, among the positioning portion and the mating portion, one of them is set as a positioning convex portion, and the other is set as a mating concave portion.

[0010] In an embodiment, the cross-sectional shape of the positioning convex portion includes a rectangle or a triangle; correspondingly, the shape of the mating concave portion includes a rectangle or a triangle.

[0011] In an embodiment, the middle frame includes a plurality of frame edges, the mating concave portion is disposed on the installation surface of the middle frame, and the mating concave portion extends to two ends adjacent to the frame edges.

[0012] In an embodiment, a plurality of mating concave portions are provided and are spaced along the width direction of the frame edge; correspondingly, a plurality of positioning convex portions on the adhesive member are provided and are spaced along the width direction of the adhesive member.

[0013] In an embodiment, the adhesive member includes a double-sided foam tape.

[0014] The present utility model further provides a backlight module, and the backlight module includes the above-mentioned middle frame structure.

[0015] In one embodiment, the backlight module further includes:

[0016] A panel, adhesively attached to the front side of the adhesive member;

[0017] A back plate, disposed on the back side of the middle frame; and,

[0018] Optical films, disposed between the middle frame and the back plate.

[0019] The present utility model further provides a display device, including the above-mentioned backlight module.

[0020] According to the technical solution of the present utility model, an installation surface is formed on the front side of the middle frame for the adhesive member to be adhered. Through the setting of the positioning structure, the adhesive member can be positioned and installed at a preset position of the middle frame, so as to achieve the purpose of improving the skew of the foam tape. Moreover, through the setting of the positioning structure, while actually increasing the contact area between the adhesive member and the middle frame, the thickness of the adhesive member is also increased, replacing the traditional design of directly thickening the adhesive member. While solving the problem that the adhesive member is prone to falling off, the light leakage problem of the backlight module is also improved. Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0022] Figure 1 It is a schematic structural diagram of an embodiment of the middle frame structure provided by the present utility model;

[0023] Figure 2 It is a schematic structural diagram of another embodiment of the middle frame structure provided by the present utility model;

[0024] Figure 3 It is a schematic structural diagram of still another embodiment of the middle frame structure provided by the present utility model;

[0025] Figure 4 It is a schematic structural diagram of yet another embodiment of the middle frame structure provided by the present utility model;

[0026] Figure 5 It is a schematic structural diagram of an embodiment of the middle frame structure provided by the present utility model in which the positioning convex portion is set as a triangle;

[0027] Figure 6 Schematic structural diagram of an embodiment in which the mating recesses in the middle frame structure provided by the present utility model are provided in multiple numbers;

[0028] Figure 7 Schematic structural diagram of the backlight module provided by the present utility model.

[0029] Explanation of the reference numerals in the drawings:

[0030] 100, middle frame structure; 1, middle frame; 11, mounting surface; 12, frame edge; 2, adhesive member; 3, positioning structure; 31, positioning portion; 32, mating portion; 33, positioning convex portion; 34, mating recess;

[0031] 200, backlight module; 2001, panel; 2002, back plate; 2003, optical film.

[0032] The realization, functional features and advantages of the object of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0034] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0035] In addition, the descriptions involving "first", "second", etc. in the present utility model are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments may be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of the technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0036] In the backlight module industry, since there are many manufacturers producing glass, and there are differences in the warping levels of the displays produced by each manufacturer, and the light leakage levels of individual units are inconsistent. In order to improve the light leakage of the glass, it is necessary to thicken the foam on the middle frame. However, if the foam is too thick, it will affect the overall thickness of the module and the thickness of the entire machine.

[0037] The present utility model provides a middle frame structure, a backlight module and a display device, aiming to achieve the purpose of positioning and installing the foam on the middle frame and improving the light leakage problem of the backlight module.

[0038] Please refer to Figures 1 to 7 , in an embodiment of the present utility model, the middle frame structure for the backlight module, the middle frame structure 100 includes a middle frame 1, an adhesive member 2 and a positioning structure 3; an installation surface 11 is formed on the front side of the middle frame 1; the adhesive member 2 is adhered to the installation surface 11; the positioning structure 3 is arranged on the middle frame 1 and / or the adhesive member 2 to position and install the adhesive member 2 at a preset position of the middle frame 1.

[0039] The technical solution of the present utility model is that an installation surface 11 is formed on the front side of the middle frame 1; the adhesive member 2 is adhered to the installation surface 11; the positioning structure 3 is arranged on the middle frame 1 and / or the adhesive member 2 to position and install the adhesive member 2 at a preset position of the middle frame 1. In this way, by forming the installation surface 11 on the front side of the middle frame 1, the adhesive member 2 can be adhered, and through the setting of the positioning structure 3, the adhesive member 2 can be positioned and installed at the preset position of the middle frame 1, achieving the purpose of improving the misalignment of the adhesive member 2. And through the setting of the positioning structure 3, while actually increasing the contact area between the adhesive member 2 and the middle frame 1, the thickness of the adhesive member 2 is also increased, replacing the traditional design of directly thickening the adhesive member. While solving the problem that the adhesive member 2 is easy to fall off, the light leakage problem of the backlight module is also improved.

[0040] It should be explained that the preset position can be a position set on the installation surface 11 parallel to the frame edge of the middle frame 1, and the adhesive member 2 is aligned with this position for adhesion; it can also be the side position of the middle frame 1, and the adhesive member 2 is aligned with the side position for adhesion.

[0041] There are various forms of setting the positioning structure 3, which can be a concave part setting, such as a groove; it can also be a convex part setting, such as a convex block.

[0042] There are various setting positions of the positioning structure 3, which can be set on the middle frame 1; it can be set on the adhesive member 2; it can also be set on both the middle frame 1 and the adhesive member 2. For the specific setting method, please refer to the following description.

[0043] AsFigure 1 As shown, in an embodiment where the positioning structure 3 is provided as a groove and is provided on the middle frame 1, the groove can be opened on the mounting surface 11, and the adhesive component 2 is installed in alignment with the middle frame 1 through the groove, thereby preventing the adhesive component 2 from being skewed.

[0044] like Figure 2 As shown, in an embodiment where the positioning structure 3 is a protrusion and is arranged on the middle frame 1, the protrusion can be fixed on the installation surface 11, and the adhesive component 2 can be fixed close to the side of the protrusion, that is, the adhesive component 2 is positioned and installed.

[0045] like Figure 3 As shown, in one embodiment where the positioning structure 3 is provided as a groove and is provided on the adhesive member 2, the groove is opened on the adhesive member 2, and a protrusion corresponding to the groove is provided on the mounting surface 11 for positioning and installing the adhesive member 2.

[0046] In this embodiment, there is no specific restriction on the number of the positioning structures 3, which can be a single one or a plurality of coordinated ones. For the specific setting method, please refer to the following description.

[0047] like Figure 4 As shown, for example, in an embodiment in which the positioning structure 3 is provided as a protrusion and is provided on the adhesive component 2, the positioning structure 3 is fixed on the side of the adhesive component 2 to form an overlapping edge, and the overlapping edge is overlapped and fixed against the side of the middle frame 1 to facilitate the positioning and installation of the adhesive component 2.

[0048] Taking into account the convenience of bonding, the positioning structure 3 can be set to be multiple. In the technical solution of the present invention, the positioning structure 3 includes a positioning portion 31 and a matching portion 32 that cooperate with each other. One of the positioning portion 31 and the matching portion 32 is arranged on the mounting surface 11, and the other is arranged on the end surface of the bonding component 2 opposite to the mounting surface 11; in this way, through the mutual cooperation between the positioning portion 31 and the matching portion 32, the bonding component 2 can be quickly positioned on the middle frame 1, thereby meeting the positioning installation of the preset position.

[0049] In this embodiment, there is no specific restriction on the setting positions of the positioning portion 31 and the matching portion 32. For example, the positioning portion 31 may be set on the mounting surface 11, and the matching portion 32 may be set on the end surface of the adhesive component 2 opposite to the mounting surface 11; or the matching portion 32 may be set on the mounting surface 11, and the positioning portion 31 may be set on the end surface of the adhesive component 2 opposite to the mounting surface 11.

[0050] The setting methods of the positioning portion 31 and the mating portion 32 can be fixed or formed, and for the specific setting methods, please refer to the following description.

[0051] In order to achieve the mating purpose, in the technical solution of the present utility model, among the positioning portion 31 and the mating portion 32, one of them is set as a positioning convex portion 33, and the other is set as a mating concave portion 34; in this way, it can be selected to set the positioning portion 31 as the positioning convex portion 33 and the mating portion 32 as the mating concave portion 34; it can also be selected to set the positioning portion 31 as the mating concave portion 34 and the mating portion 32 as the positioning convex portion 33; that is, the positioning convex portion 33 and the mating concave portion 34 are in convex-concave fit to position and install the adhering member 2 at a preset position of the middle frame 1, enhancing the tightness of the connection between the adhering member 2 and the middle frame 1, effectively avoiding the problem of the adhering member 2 falling off, and because of the tight connection, it can improve the problem of panel light leakage in the subsequent panel use.

[0052] It should be noted that the positioning convex portion 33 can be a convex block, and the mating concave portion 34 can be a groove, that is, the convex block and the groove are in convex-concave fit to realize the connection between the adhering member 2 and the middle frame 1.

[0053] Of course, considering that there are various forms of convex-concave fit, in this embodiment, the setting forms of the positioning convex portion 33 and the mating concave portion 34 are not specifically limited, such as square, arc, etc.

[0054] Specifically, in the technical solution of the present utility model, the cross-sectional shape of the positioning convex portion 33 includes a rectangle or a triangle; correspondingly, the shape of the mating concave portion 34 includes a rectangle or a triangle; in this way, as Figure 5 shown, by fitting and installing the positioning convex portion 33 and the mating concave portion 34, the purpose of convex-concave fit is achieved, while increasing the contact area of the adhering member 2, and to a certain extent, the thickness of the adhering member 2 is also increased, thereby buffering the panel and improving the light leakage problem.

[0055] In order to achieve the purpose of good sealing of the bonding member 2, in the technical solution of the present utility model, the middle frame 1 includes a plurality of frame edges 12, the mating concave portion 34 is provided on the installation surface 11 of the middle frame 1, and the mating concave portion 34 extends to be provided at two ends adjacent to the frame edge 12; in this way, on the installation surface 11, the mating concave portion 34 can connect the two ends of each frame edge 12 to achieve the purpose that the mating concave portion 34 is integrally provided, which is beneficial to the overall bonding and positioning of the bonding member 2.

[0056] It can be understood that in some embodiments, the mating recess 34 is adhesively used in a segmented manner. While it is prone to loosening, there is still a light leakage problem. Therefore, in this embodiment, by setting the mating recess 34 as a whole without segmentation, the effect of airtight connection between the adhesive member 2 and the middle frame 1 is achieved, and the connection tightness of the adhesive member 2 is improved.

[0057] Furthermore, in order to improve the positioning effect, in the technical solution of the present utility model, as Figure 6 shown, a plurality of the mating recesses 34 are provided and are spaced along the width direction of the frame edge 12; correspondingly, a plurality of the positioning protrusions 33 on the adhesive member 2 are provided and are spaced along the width direction of the adhesive member 2; thus, by the mutual cooperation between the plurality of the mating recesses 34 and the plurality of the positioning protrusions 33, the area of the adhesive member 2 on the middle frame 1 is further enlarged, the bonding effect between the adhesive member 2 and the middle frame 1 is improved, and the bonding is made tighter.

[0058] In order to achieve the bonding effect, in the technical solution of the present utility model, the adhesive member 2 includes a foam double-sided tape; thus, the foam double-sided tape can be adhesively fixed to the middle frame 1.

[0059] It should be noted that by setting the adhesive member 2 as a foam double-sided tape, not only can it be directly adhesively fixed, but also it can be cut on the foam double-sided tape to make the foam double-sided tape into a profile to cooperate with the positioning structure 3 for positioning and installation. The operation is simple and there is no need for an external structure for installation and use.

[0060] Specifically, in the embodiment where the positioning structure 3 is a groove, a groove is opened on the installation surface 11, and a protrusion adapted to the groove is cut out on the foam double-sided tape, that is, the protrusion is adapted and installed with the groove, and the remaining part on the foam double-sided tape is adhesively bonded to the installation end face, realizing the positioning of the foam double-sided tape and the middle frame 1.

[0061] The present utility model also proposes a backlight module, as Figure 7 shown, the backlight module includes a backlight module 200 and a middle frame structure 100. The specific structure of the middle frame structure 100 refers to the above embodiment. Since this backlight module adopts all the technical solutions of the above all embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, and will not be elaborated herein one by one.

[0062] Further, the backlight module 200 further includes a panel 2001, a backplane 2002, and an optical film 2003; the panel 2001 is adhered to the front side of the adhering member 2; the backplane 2002 is disposed on the back side of the middle frame 1; the optical film 2003 is disposed between the middle frame 1 and the backplane 2002.

[0063] It should be noted that the panel 2001 includes glass, and the panel 2001 is adhesively fixed to the middle frame 1 through the adhering member 2.

[0064] It should be noted that the optical film 2003 includes a reflective sheet, a diffusion sheet, and a film.

[0065] The present utility model also provides a display device, which includes a display device and a backlight module. The specific structure of the backlight module refers to the above embodiments. Since this display device adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated herein one by one.

[0066] The above are only the preferred embodiments of the present utility model, and do not limit the patent scope of the present utility model. Any equivalent structural transformation made under the inventive concept of the present utility model by using the content of the specification and drawings of the present utility model, or direct / indirect application in other related technical fields, is included in the patent protection scope of the present utility model.

Claims

1. A middle frame structure for a backlight module, characterized in that, The middle frame structure includes: A middle frame with an installation surface formed on the front side; An adhesive member adhered to the installation surface; and A positioning structure provided on the middle frame and / or the adhesive member for positioning and installing the adhesive member at a preset position on the middle frame.

2. The middle frame structure according to claim 1, characterized in that The positioning structure includes a positioning portion and a mating portion that cooperate with each other. Among the positioning portion and the mating portion, one of them is provided on the installation surface, and the other is provided on the end surface of the adhesive member opposite to the installation surface.

3. The middle frame structure according to claim 2, wherein Among the positioning portion and the mating portion, one of them is set as a positioning convex portion, and the other is set as a mating concave portion.

4. The middle frame structure according to claim 3, wherein The cross-sectional shape of the positioning convex portion includes a rectangle or a triangle; correspondingly, the shape of the mating concave portion includes a rectangle or a triangle.

5. The middle frame structure according to claim 3, characterized in that, The middle frame includes a plurality of frame edges, the mating concave portion is provided on the installation surface of the middle frame, and the mating concave portion extends to two ends adjacent to the frame edges.

6. The middle frame structure according to claim 5, wherein A plurality of the mating concave portions are provided and arranged at intervals along the width direction of the frame edge; correspondingly, a plurality of positioning convex portions on the adhesive member are provided and arranged at intervals along the width direction of the adhesive member.

7. The middle frame structure according to claim 1, characterized in that, The adhesive member includes a double-sided foam tape.

8. A backlight module, characterized in that, The backlight module includes the middle frame structure according to any one of claims 1 to 7.

9. The backlight module according to claim 8, wherein, The backlight module further includes: A panel adhered to the front side of the adhesive member; A back plate provided on the back side of the middle frame; and Optical films provided between the middle frame and the back plate.

10. A display device, characterized in that, Including the backlight module according to any one of claims 8 to 9.

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