Backlight module and display device

Abstract

The utility model relates to a backlight module and a display device. The backlight module comprises an outer shell, a backlight part and a filling part. The outer shell comprises a containing space, the backlight part is arranged in the containing space, and a gap is formed between the side edge of the backlight part and the side wall of the containing space. At least part of the filling part is arranged in the gap to limit movement of the backlight part. Based on the arrangement, when the side edge or the corner of the display device falls off, the outer shell extrudes the backlight part and does not cause the backlight part to slightly move left and right or rotate relative to the display part, but the filling part in the gap directly abuts against the backlight part and the inner wall of the outer shell, so that the backlight part does not move relative to the outer shell. In other words, the backlight part cannot be dislocated or rotated relative to the display part, and then the main flexible circuit board cannot be pulled. Therefore, the shell impact dislocation resistance of the backlight module can be effectively improved, the shearing force effect generated when the backlight part pulls the main flexible circuit board is reduced, and the blank screen possibility of the display device is reduced.

Description

Technical Field

[0001] The present application relates to the field of backlight modules, and particularly to a backlight module and a display device. Background Art

[0002] With the trend of low-cost middle cases in terminal devices, such as the increasing proportion of plastic parts, the thinning of the middle case thickness, and the change of the middle case from die-cast parts to stamped parts, etc., the anti-deformation ability, flatness, and buffering performance of the case become worse, and the protection performance for the module decreases significantly. During the drop test of the whole device, the circuit in the single-layer bending area of the flexible circuit board breaks, and finally the display part shows a black screen. The main mechanism is as follows: when the side or corner of the display device drops, the outer shell of the backlight module deforms due to collision with the ground, and the deformed outer shell squeezes the backlight part of the backlight module, causing it to slightly shift or rotate left and right relative to the display part. At this time, the upper side of the bending area of the flexible circuit board is fixed to the display part, and the lower side is fixed to the backlight module through double-sided tape. When the backlight module rotates or moves, the position of the display part does not change. As a result, when the backlight module rotates or moves, the flexible circuit board is pulled, and stress concentration occurs at the connection position between the backlight module and the display part, finally resulting in the breakage of the circuit in the single-layer area. Summary of the Utility Model

[0003] The purpose of the present application is to provide a backlight module and a display device.

[0004] According to the first aspect of the embodiments of the present application, a backlight module is provided, and the backlight module includes:

[0005] An outer shell, the outer shell includes an accommodation space;

[0006] A backlight part, the backlight part is arranged in the accommodation space, and there is a gap between the side of the backlight part and the inner wall of the accommodation space;

[0007] A filling part, at least part of the filling part is arranged in the gap to limit the movement of the backlight part.

[0008] Based on the above settings, when the side or corner of the display device drops, the outer shell squeezing the backlight part will not cause it to slightly shift or rotate left and right relative to the display part, but directly the filling part in the gap resists the backlight part and the inner wall of the outer shell, so that the backlight part does not move relative to the outer shell. That is, it will not cause the backlight part to shift or rotate relative to the display part, and thus will not cause the main flexible circuit board to be pulled. Therefore, the anti-impact and misalignment ability of the backlight module against the case can be effectively improved, the shearing force generated by the backlight part pulling the main flexible circuit board can be reduced, and the possibility of the display device showing a black screen is reduced.

[0009] In some embodiments, the filling portion is connected to the backlight portion and extends from the backlight portion toward the outer housing.

[0010] With such an arrangement, the filling portion and the backlight portion can be integrally provided, so that the filling portion does not need to be assembled separately, reducing the assembly steps and saving the assembly process. At the same time, the filling portion and the backlight portion can also be integrally manufactured. This structure can be formed by integral stamping, and basically does not involve an increase in cost. Therefore, the above arrangement can reduce the risk of flexible circuit board breakage without increasing the cost.

[0011] In some embodiments, the backlight portion includes a housing unit and a backlight unit. The backlight unit is configured to emit light outward. The housing unit includes an installation space. The backlight unit is disposed in the installation space and fixed to the inner wall of the housing unit. The filling portion is disposed on the outer wall of the housing unit.

[0012] The filling portion is fixed to the outer wall of the housing unit. On the one hand, it can prevent the filling portion from squeezing the backlight unit and causing damage. On the other hand, it can enable the filling portion and the housing unit to be manufactured together, reducing the manufacturing process.

[0013] In some embodiments, the housing unit includes a top edge, a bottom edge, and side edges connecting the top edge and the bottom edge. The filling portion is disposed on the side edges;

[0014] The maximum distance between the filling portion and the bottom edge is less than or equal to 15 mm.

[0015] Within this range, when dropping from the side edge or the corner, the filling portion can provide sufficient supporting force to prevent the backlight portion from moving relative to the display portion, thereby reducing the possibility of the display device going black.

[0016] In some embodiments, the number of the filling portions is multiple. The housing unit includes a top edge, a bottom edge, and two side edges connecting the top edge and the bottom edge;

[0017] At least two of the side edges are provided with filling portions and extend toward the outer housing; or,

[0018] At least one of the side edges is provided with at least two of the filling portions and extends toward the outer housing. In some embodiments, the filling portion is connected to the inner wall of the outer housing and extends from the outer housing toward the backlight portion.

[0019] Similarly, directly connecting it to the inner wall of the outer housing can, on the one hand, reduce the assembly steps and save the assembly process. On the other hand, the filling portion and the outer housing can be integrally manufactured. This structure can be formed by integral stamping and basically does not involve an increase in cost.

[0020] In some embodiments, the width of the filling portion located within the gap is greater than or equal to 0.07 mm and less than or equal to 1.3 mm. Within this range, on the one hand, the filling portion reduces the misalignment or rotation of the backlight portion relative to the display portion, and on the other hand, it facilitates the arrangement of the filling portion within the gap and is convenient for assembly.

[0021] and / or,

[0022] The length of the filling portion located within the gap is greater than or equal to 3 mm and less than or equal to 7 mm. Within this range, on the one hand, the filling portion can well achieve the purpose of support, and on the other hand, while saving materials, it is also convenient for assembly.

[0023] In some embodiments, the backlight module further includes a shielding sheet, and the shielding sheet is disposed on the backlight portion and extends into the gap to fix the filling portion.

[0024] In the above manner, the filling portion is fixed within the gap, so that when the outer housing presses the backlight portion, it will not cause the backlight portion to slightly misalign or rotate left and right relative to the display portion, and further will not cause the main flexible circuit board to be pulled.

[0025] In some embodiments, the shielding sheet includes a wrapping unit, and at least a part of the wrapping unit forms an arrangement space with the side edge of the backlight portion, and the filling portion is clamped in the arrangement space.

[0026] Based on the above setting, the filling portion can be clamped in the arrangement space before assembly, and then the assembled filling portion and the backlight portion are cooperated with the outer housing together. Moreover, the wrapping unit only needs to simply fold the outer edge of the shielding sheet downward to form the arrangement space and accommodate the filling portion.

[0027] In some embodiments, the filling portion is made of an elastic material. The filling portion is set to be compressible, so as to avoid directly transmitting all the deformations of the outer housing to the backlight portion by too large an impact force, and further causing damage to the backlight unit of the backlight portion.

[0028] According to the second aspect of the embodiments of the present application, a display device is provided, including:

[0029] A backlight module as described in any one of the above embodiments;

[0030] A display portion, the display portion is disposed on the side of the outer housing where the backlight portion is designed, and the display portion is fixed to the outer housing;

[0031] A flexible circuit board, one end of the flexible circuit board is fixedly connected to the backlight portion, and the other end is connected to the display portion.

[0032] The beneficial technical effects brought by the technical solution provided by the embodiments of the present application are:

[0033] By providing a filling portion in the gap between the outer housing and the backlight portion. Based on the above arrangement, when the side or corner of the display device drops, the outer housing pressing against the backlight portion will not cause it to slightly shift left and right or rotate relative to the display portion. Instead, the filling portion in the gap directly abuts against the backlight portion and the inner wall of the outer housing, thereby preventing the backlight portion from moving relative to the outer housing. That is, it will not cause the backlight portion to shift or rotate relative to the display portion, and thus will not cause the main flexible circuit board to be pulled. Therefore, the anti-shock and misalignment ability of the backlight module can be effectively improved, the shearing force generated by the backlight portion pulling the main flexible circuit board can be reduced, and the possibility of the display device going black can be decreased. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0035] Figure 1 FIG. is a schematic cross-sectional structure diagram of a display device according to an embodiment of the present application.

[0036] Figure 2 FIG. is another schematic cross-sectional structure diagram of a display device according to an embodiment of the present application.

[0037] Figure 3 FIG. is yet another schematic cross-sectional structure diagram of a display device according to an embodiment of the present application.

[0038] Figure 4 FIG. is a schematic diagram of the cooperation between the outer housing and the backlight portion according to an embodiment of the present application.

[0039] Figure 5 FIG. is a partial schematic structure diagram of the backlight portion according to an embodiment of the present application.

[0040] Figure 6 FIG. is a schematic structure diagram of a backlight portion according to an embodiment of the present application.

[0041] Figure 7 FIG. is a schematic structure diagram of another backlight portion according to an embodiment of the present application.

[0042] Figure 8 FIG. is a partial schematic structure diagram of a backlight module according to an embodiment of the present application.

[0043] Figure 9 FIG. is a partial schematic structure diagram of another backlight module according to an embodiment of the present application.

[0044] Figure 10 Schematic structural diagram of a shielding sheet shown according to an embodiment of the present application.

[0045] Figure 11 Schematic diagram of the cooperation between a hemming unit and a filling part shown according to an embodiment of the present application.

[0046] Description of reference numerals:

[0047] Backlight module 10

[0048] Outer housing 100

[0049] Accommodation space 110

[0050] Backlight part 200

[0051] Housing unit 210

[0052] Top edge 211

[0053] Bottom edge 212

[0054] Side edge 213

[0055] Installation space 214

[0056] Backlight unit 220

[0057] Filling part 300

[0058] Shielding sheet 400

[0059] Hemming unit 410

[0060] Display part 20

[0061] Flexible circuit board 30

[0062] Light-shielding adhesive 40

[0063] White dot 50

[0064] Gap X

[0065] Width direction N

[0066] Length direction M Detailed implementation manners

[0067] Here, the technical solutions in the embodiments (or "implementation manners") of the present application will be clearly and completely described in conjunction with the accompanying drawings. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0068] If there are terms related to directional indication or positional relationship in the embodiments of the present application (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, lateral, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationship, movement conditions, etc. between components in a specific posture (as shown in the drawings); if the specific posture changes, the directional indication or positional relationship will also change accordingly. In addition, the terms "first", "second", etc. involved in the embodiments of the present application are only for the purpose of convenient description and cannot be construed as indicating or implying relative importance.

[0069] Refer to Figure 1 and Figure 2 As shown, a display device generally includes components such as a backlight module 10, a display unit 20, and a flexible circuit board 30. Among them, the backlight module 10 is an important component that provides light sources. It is usually located behind or at the edge of the display screen and can emit uniform light, which forms an image after passing through the liquid crystal layer. The display unit 20 is the core part of the display device and is responsible for presenting images. In an LCD, the display panel is composed of two glass substrates sandwiching a layer of liquid crystal material. By controlling the voltage applied to the liquid crystal, the arrangement of liquid crystal molecules can be changed, thereby adjusting the intensity of the transmitted light to achieve image display. The flexible circuit board 30 is a circuit board made of flexible materials and is commonly used to connect the display panel to the main board or other components to transmit electrical signals to drive the display. In addition to the above main components, the display device may also include other auxiliary components, such as polarizers, touch screens, protective glasses, etc. These components work together to ensure the functionality and user experience of the display device.

[0070] However, with the trend of cost reduction of the middle case in the terminal whole machine, that is, factors such as the increasing proportion of plastic parts, the thinning of the middle case thickness, and the change of the middle case from a die-cast part to a stamping part, the anti-deformation ability, flatness, and buffering performance of the case are all deteriorated, and the protection performance for the module is significantly reduced. When the whole machine is subjected to a drop test, the circuit lines in the single-layer bending area of the flexible circuit board 30 are broken, and finally the display unit 20 shows a black screen. The main mechanism is as follows: when the side or corner of the display device drops, the outer casing 100 of the backlight module 10 deforms due to collision with the ground, and the deformed outer casing 100 squeezes the backlight part 200 of the backlight module 10, causing it to slightly move left and right or rotate relative to the display unit 20. At this time, the upper side of the bending area of the flexible circuit board 30 is fixed (such as bonded connection) to the display unit 20, and the lower side is fixed to the backlight module 10 through double-sided tape. When the backlight module 10 rotates or moves, the position of the display unit 20 does not change. As a result, when the backlight module 10 rotates or moves, the flexible circuit board 30 is pulled, and stress concentration occurs at the connection position between the backlight module 10 and the display unit 20, finally resulting in the breakage of the circuit lines in the single-layer area.

[0071] Reference Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, the present application provides a display device, including: a backlight module 10, a display unit 20, and a flexible circuit board 30. Among them, the backlight module 10 includes a housing 100, a backlight unit 200, and a filling unit 300. The housing 100 includes an accommodation space 110. The backlight unit 200 is disposed in the accommodation space 110, and there is a gap X between the side 213 of the backlight unit 200 and the side wall of the accommodation space 110. At least a part of the filling unit 300 is disposed in the gap X to limit the movement of the backlight unit 200. The display unit 20 is disposed on the side of the housing 100 where the backlight unit 200 is designed, and the display unit 20 is fixed to the housing 100. One end of the flexible circuit board 30 is fixedly connected to the backlight unit 200, and the other end is connected to the display unit 20.

[0072] It should be noted that the above filling unit 300 can be made of materials such as rubber, metal, plastic, etc. As long as it can provide sufficient supporting force for the backlight unit 200, it should be within the protection scope of the present application.

[0073] Based on the above settings, when the side or corner of the display device drops, the housing 100 squeezing the backlight unit 200 will not cause it to slightly move left and right or rotate relative to the display unit 20. Instead, the filling unit 300 in the gap X directly abuts against the backlight unit 200 and the inner wall of the housing 100, so that the backlight unit 200 does not move relative to the housing 100. That is, it will not cause the backlight unit 200 to move or rotate relative to the display unit 20, and thus will not cause the main flexible circuit board 30 to be pulled. Therefore, the anti-impact and misalignment ability of the backlight module 10 can be effectively improved, the shearing force generated by the backlight unit 200 pulling the main flexible circuit board 30 is reduced, and the possibility of the display device going black is reduced.

[0074] In this embodiment, when the width of the filling portion 300 located within the gap X is too small, it is insufficient to provide support and cannot reduce the dislocation or rotation of the backlight portion 200 relative to the display portion 20. When the width of the filling portion 300 is too large, it is difficult to insert the filling portion 300 into the gap X, causing difficulties in assembly. In this application, the width of the filling portion 300 located within the gap X is set to be greater than or equal to 0.07 mm and less than or equal to 1.3 mm. Within this range, on the one hand, the filling portion 300 reduces the dislocation or rotation of the backlight portion 200 relative to the display portion 20, and at the same time, it is also convenient to arrange the filling portion 300 within the gap X, facilitating assembly. For example, the width of the filling portion 300 located within the gap X can be 0.07 mm, 0.08 mm, 0.09 mm, 0.10 mm, 0.11 mm, 0.12 mm, 0.13 mm. In addition, it should be noted that the width here is the distance in the width direction N. That is, the distance extending from the side of the backlight portion 200 towards the side wall of the accommodation space 110.

[0075] At the same time, when the length of the filling portion 300 located within the gap X is too small, it is easily compressed, and thus cannot provide sufficient supporting force to achieve the purpose of support. At the same time, when the length of the filling portion 300 located within the gap X is too large, while wasting a large amount of material, it is difficult to assemble the filling portion 300 into the gap X. In this application, the length of the filling portion 300 located within the gap X is set to be greater than or equal to 3 mm and less than or equal to 7 mm. Within this range, on the one hand, the filling portion 300 can well achieve the purpose of support, and on the other hand, while saving materials, it is also convenient for assembly. For example, the length of the filling portion 300 located within the gap X can be 3 mm, 3.5 mm, 4 mm, 4.5 mm, 5 mm, 5.5 mm, 6 mm, 6.5 mm, 7 mm. Similarly, it should be noted that the length here is the distance in the length direction M. Refer to Figure 4 As shown, the width direction N and the length direction M are perpendicularly arranged.

[0076] In summary, the width of the filling portion 300 located within the gap X is set to be greater than or equal to 0.07 mm and less than or equal to 1.3 mm. The length of the filling portion 300 located within the gap X is set to be greater than or equal to 3 mm and less than or equal to 7 mm.

[0077] In addition, referring to Figure 1 and Figure 3 As shown, since the flexible circuit board 30 is bent from the bottom edge 212 of the housing unit 210 to be connected to the display portion 20, when the filling portion 300 is too far from the bottom edge 212, it cannot play a limiting role and cannot prevent the backlight portion 200 from moving relative to the display portion 20. Refer to Figure 6 and Figure 7As shown, the housing unit 210 includes a top edge 211, a bottom edge 212, and side edges 213 connecting the top edge 211 and the bottom edge 212. In this embodiment, the filling portion 300 is disposed on the side edge 213, and the maximum distance between the filling portion 300 and the bottom edge 212 is less than or equal to 15 mm. Within this range, when the side or corner drops, the filling portion 300 can provide sufficient supporting force to prevent the backlight portion 200 from moving relative to the display portion 20, thereby reducing the possibility of the display device going black. For example, the maximum distance between the filling portion 300 and the bottom edge 212 can be set to 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm.

[0078] In one embodiment, with continued reference to Figure 6 and Figure 7 As shown, the number of the filling portions 300 is multiple. The housing unit 210 includes two side edges 213, and at least two side edges 213 are provided with the filling portions 300 and extend towards the outer housing 100.

[0079] Based on the above settings, the filling portions 300 are provided on both of the two side edges 213, which can protect both sides of the housing unit 210 and make the force on both sides uniform, making the backlight module 10 more durable.

[0080] In another embodiment, the present application can also be provided with at least two of the filling portions 300 on at least one of the side edges 213 and extend towards the outer housing 100. That is, at least two support points are provided in a gap X, so that the force on the housing unit 210 can also be uniform in the length direction M, thereby making the backlight module 10 more durable.

[0081] In addition, with reference to Figure 6 As shown, when the backlight module 10 often needs to block the light-blocking tape 40 (Light Blocking Tape) to block the parts that do not need to transmit light to prevent light leakage, and can also be used for marking or positioning. And when the backlight module 10 and the display portion 20 are assembled and positioned subsequently, it is necessary to leave a blank at the corresponding light-blocking tape 40 for convenient manual or machine positioning. Since the filling portion 300 of the present application is a convex structure, it can replace part of the white dots left blank for positioning. Thereby reducing the opening of the blank of part of the light-blocking tape 40, and on the one hand reducing the blanking process, and on the other hand also reducing the light transmission of part of the backlight portion 200 from the blanking portion. With reference to Figure 6 As shown, when normally leaving a blank for the light-blocking tape 40, 8 white dots 50 need to be left at the edge of the light-blocking tape 40. With reference to Figure 7As described above, the filling portion 300 of the present application replaces the original two blank spots 50 on the side, thereby reducing the blanking process for the two blank spots 50 and also reducing the light leakage at these two locations.

[0082] Based on the above settings, further, a corresponding filling portion 300 can be provided at each blank spot 50 of each light-shielding adhesive 40, so that the filling portion 300 completely replaces the blank spot 50, thereby eliminating the need to set up a blanking process in the assembly process, and further reducing the process. In addition, since no blank spot 50 is provided, the light leakage problem of the backlight module 10 can be minimized, so as to increase the light intensity of the backlight module 10.

[0083] In one embodiment, referring to Figure 4 and Figure 5 as shown, the filling portion 300 is connected to the backlight portion 200 and extends from the backlight portion 200 toward the outer housing 100.

[0084] With this setting, the filling portion 300 and the backlight portion 200 can be integrally provided, so there is no need to separately assemble the filling portion 300, reducing the assembly steps and saving the assembly process. At the same time, the filling portion 300 and the backlight portion 200 can also be integrally manufactured. This structure can be formed by integral stamping, and basically does not involve an increase in cost. Therefore, the above setting can reduce the risk of the flexible circuit board 30 breaking without increasing the cost.

[0085] In this embodiment, continue to refer to Figure 4 and Figure 5 as shown, the backlight portion 200 includes a housing unit 210 and a backlight unit 220. The backlight unit 220 is used to emit light outward. The housing unit 210 includes an installation space 214. The backlight unit 220 is disposed in the installation space 214 and is fixed to the inner wall of the housing unit 210. The filling portion 300 is disposed on the outer wall of the housing unit 210.

[0086] The filling portion 300 is fixed to the outer wall of the housing unit 210. On the one hand, it can prevent the filling portion 300 from squeezing the backlight unit 220 and causing damage. On the other hand, it can enable the filling portion 300 and the housing unit 210 to be manufactured together, reducing the manufacturing process.

[0087] In one embodiment, the filling portion 300 can also be connected to the inner wall of the outer housing 100 and extend from the outer housing 100 toward the backlight portion 200.

[0088] Similarly, directly connecting it to the inner wall of the outer housing 100 can, on the one hand, reduce the assembly steps and save the assembly process. On the other hand, the filling portion 300 and the outer housing 100 can be integrally manufactured. This structure can be formed by integral stamping and also basically does not involve an increase in cost.

[0089] In addition, the filling portion 300 can also be connected to the outer housing 100 and the housing unit 210 respectively. The filling portions 300 connected to the outer housing 100 and the housing unit 210 can be arranged staggeredly to provide different supporting forces, and the staggered arrangement can also prevent the filling portions 300 on the outer housing 100 and the filling portions 300 on the housing unit 210 from overlapping, thus not affecting the installation.

[0090] In one embodiment, referring to Figure 8 , Figure 9 , Figure 10 and Figure 11 as shown, the backlight module 10 further includes a shielding sheet 400. The shielding sheet 400 is disposed on the backlight portion 200 and extends into the gap X to fix the filling portion 300. It should be noted that the shielding sheet 400 here can be a component outside the original backlight module 10, or the original backlight module 10 can be used as part of the shielding sheet 400, and a part thereof extends into the gap X to fix the filling portion 300. The material of the shielding sheet 400 can be selected from metals such as copper and silver, or materials such as rubber and plastic. It should also be noted that the shielding sheet 400 can clamp the filling portion 300 to fix it in the gap X, or directly fixedly connect to the filling portion 300 to fix it.

[0091] In the above manner, the filling portion 300 is fixed in the gap X, so that when the outer housing 100 presses the backlight portion 200, it will not cause the backlight portion 200 to slightly shift or rotate relative to the display portion 20, and thus the flexible circuit board 30 will not be pulled, playing a role in protecting the flexible circuit board 30.

[0092] In this embodiment, the filling portion 300 can be made of an elastic material, such as foam, rubber and other materials. This can prevent excessive impact force from directly transmitting all the deformations of the outer housing 100 to the backlight portion 200, and further prevent the backlight unit 220 of the backlight portion 200 from being damaged.

[0093] In one embodiment, continuing to refer to Figure 8 , Figure 9 , Figure 10 and Figure 11 as shown, the shielding sheet 400 includes a wrapping unit 410. At least a part of the wrapping unit 410 forms an arrangement space 411 with the side edge 213 of the backlight portion 200, and the filling portion 300 is clamped in the arrangement space 411.

[0094] Based on the above settings, the filling portion 300 can be clamped in the arrangement space 411 before assembly, and then the assembled filling portion 300 and the backlight portion 200 are cooperated with the outer housing 100 together. Moreover, the wrapping unit 410 only needs to simply fold the outer edge of the shielding sheet 400 downward to form the arrangement space 411 and accommodate the filling portion 300.

[0095] The present application also provides an electronic device, which includes the display device described in the above embodiments. Since the electronic device includes the above display device, the advantages and functions of the above display device are also possessed by the electronic device. The electronic device may be a smart phone, a tablet computer, a notebook computer, a desktop computer monitor, a smart TV, an in-vehicle navigation system, a game console, or the like.

[0096] It should be noted that the technical solutions or technical features described in the above embodiments may be combined or supplemented with each other without conflict. The scope of protection of the present application is not limited to the exact structures described in the above embodiments and shown in the drawings; all modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included within the scope of protection of the present application.

Claims

1. A backlight module, characterized in that, The backlight module includes: A housing body, the housing body including an accommodation space; A backlight portion, the backlight portion being disposed in the accommodation space, and there being a gap between the side of the backlight portion and the side wall of the accommodation space; A filling portion, at least part of the filling portion being disposed in the gap to limit the movement of the backlight portion.

2. The backlight module according to claim 1, wherein The filling portion is connected to the backlight portion and extends from the backlight portion toward the housing body.

3. The backlight module according to claim 2, characterized in that, The backlight portion includes a housing unit and a backlight unit, the backlight unit being configured to emit light outward, the housing unit including an installation space, the backlight unit being disposed in the installation space and fixed to the inner wall of the housing unit, and the filling portion being disposed on the outer wall of the housing unit.

4. The backlight module according to claim 3, wherein The housing unit includes a top edge, a bottom edge, and side edges connecting the top edge and the bottom edge, and the filling portion is disposed on the side edges; The maximum distance between the filling portion and the bottom edge is less than or equal to 15 mm.

5. The backlight module according to claim 3, wherein The number of the filling portions is plural, the housing unit including a top edge, a bottom edge, and two side edges connecting the top edge and the bottom edge; At least two of the side edges are provided with filling portions and extend toward the housing body; Or, At least one of the side edges is provided with at least two of the filling portions and extends toward the housing body.

6. The backlight module according to claim 1, characterized in that, The filling portion is connected to the inner wall of the housing body and extends from the housing body toward the backlight portion.

7. The backlight module according to claim 1, wherein, The width of the filling portion located in the gap is greater than or equal to 0.07 mm and less than or equal to 1.3 mm; and / or, The length of the filling portion located in the gap is greater than or equal to 3 mm and less than or equal to 7 mm.

8. The backlight module according to claim 1, wherein The backlight module further includes a shielding sheet, the shielding sheet being disposed on the backlight portion and extending into the gap to fix the filling portion.

9. The backlight module according to claim 8, wherein, The shielding sheet includes a wrapping unit, and at least part of the wrapping unit forms an arrangement space with the side of the backlight portion, and the filling portion is clamped in the arrangement space.

10. The backlight module according to any one of claims 1 to 9, characterized in that, The filling portion is made of an elastic material.

11. A display device, characterized in that, Including: The backlight module according to any one of claims 1 to 10; A display portion, the display portion being disposed on a side of the housing body where the backlight portion is designed, and the display portion being fixed to the housing body; A flexible circuit board, one end of the flexible circuit board being fixedly connected to the backlight portion and the other end being connected to the display portion.

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