Light blocking structure, backlight module and display device

Abstract

The utility model provides a light blocking structure, a backlight module and a display device, the light blocking structure comprises a light blocking piece and a connecting piece, the light blocking piece is arranged on the connecting piece, the light blocking piece protrudes out of the connecting piece to form a first step and a second step, and the first step and the second step are arranged on the two sides of the light blocking piece respectively. The light blocking structure can prevent light leakage.

Description

Technical Field

[0001] This utility model relates to the field of display technology, and in particular to a light-blocking structure, a backlight module, and a display device. Background Technology

[0002] Currently, commonly used direct-lit backlight modules typically employ a backplate bending method to fix optical components and LCD panels, thereby eliminating the mid-frame and achieving a thinner and lighter display device.

[0003] The backplate is bent to form a bottom and multiple frames. These frames, together with the bottom, form a cavity to accommodate and hold the optical components, thus preventing light leakage. However, during the production of the backlight module, due to reduced manufacturing precision or interference between components during assembly, gaps can easily form between the frames, leading to light leakage. Utility Model Content

[0004] This application provides a light-blocking structure, a backlight module, and a display device, wherein the light-blocking structure can prevent light leakage.

[0005] This application provides a light-blocking structure, including:

[0006] Connectors;

[0007] A light-blocking component is disposed on the connecting member, and the connecting member protrudes from the light-blocking component to form a first step and a second step, the first step and the second step being respectively disposed on both sides of the light-blocking component.

[0008] This application embodiment also provides a backlight module, including:

[0009] The back panel includes a bottom, a first frame portion and a second frame portion. The first frame portion and the second frame portion are arranged around the edge of the bottom to form a receiving cavity. The first frame portion and the second frame portion extend in different directions. The first frame portion is provided with a first card hole.

[0010] An optical component is disposed within the receiving cavity;

[0011] A light-blocking structure, wherein the light-blocking structure is as described above, the first frame portion abuts against the first step, and the second frame portion abuts against the second step.

[0012] This application also provides a display device, which includes the backlight module described above.

[0013] In the light-blocking structure, backlight module, and display device provided in this application embodiment, the light-blocking structure includes a light-blocking member and a connecting member. The light-blocking member protrudes from the connecting member to form a first step and a second step, which are respectively disposed on both sides of the light-blocking member. When the light-blocking structure is applied to a back panel, the back panel has multiple frame portions, with adjacent frame portions including a first frame portion and a second frame portion. The first frame portion is disposed within the first step, and the second frame portion is disposed within the second step. The light-blocking member can block the gap between the first frame portion and the second frame portion, preventing light leakage. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the backlight module provided in an embodiment of this application.

[0016] Figure 2 for Figure 1 A magnified schematic diagram of part A.

[0017] Figure 3 for Figure 1 A magnified schematic diagram of part B.

[0018] Figure 4 This is a first schematic diagram of a light-blocking structure provided in an embodiment of this application.

[0019] Figure 5 This is a second schematic diagram of the light-blocking structure provided in the embodiments of this application.

[0020] Figure 6 for Figure 5 A structural schematic diagram of the cross section CC.

[0021] Figure 7 for Figure 1 An explosion diagram.

[0022] Figure 8 for Figure 7 A magnified schematic diagram of part D.

[0023] Figure 9 This is a partial schematic diagram of the backlight module provided in an embodiment of this application. Detailed Implementation

[0024] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0025] This application provides a light-blocking structure, a backlight module, and a display device. The light-blocking structure can prevent light leakage. The following is a detailed description with reference to the accompanying drawings.

[0026] Please see Figure 1 , Figure 1 This is a schematic diagram of the backlight module provided in an embodiment of this application.

[0027] This application provides a light-blocking structure 10, which is applied to a backlight module 100 to generate uniform light. Please refer to [link to relevant documentation]. Figure 2 , Figure 2 for Figure 1 A magnified schematic diagram of part A. The backlight module 100 has a back plate 20, which can be an F-bent back plate 20. An F-bent means that the edge of the back plate 20 is bent to form an inverted F shape. In this case, the back plate 20 can both house the optical components and support the liquid crystal panel, thereby eliminating the need for a mid-frame structure and further improving the thinness of the display device.

[0028] The multiple frame portions 22 of the backlight module 100 can be composed of a middle frame or formed by bending the back plate 20. The frame portions 22 of the backlight module 100 can be correspondingly disposed at the edge of the backlight module 100, or correspondingly disposed in the non-display area surrounding the display area, so as to block the edges or traces of some circuit boards, optical components, etc.

[0029] During the production of the backlight module 100, due to reduced manufacturing precision and the interaction between various components during assembly, gaps can easily form between the frame parts 22, leading to light leakage.

[0030] Therefore, this application provides a light-blocking structure 10 that can solve the light leakage problem between the frame portions 22.

[0031] Please see Figure 3 as well as Figure 4 , Figure 3 for Figure 1 A magnified schematic diagram of part B. Figure 4This is a first schematic diagram of a light-blocking structure provided in an embodiment of this application. The light-blocking structure 10 includes a light-blocking member 11 and a connecting member 12. The light-blocking member 11 is disposed on the connecting member 12 and protrudes from the connecting member 12 to form a first step 14 and a second step 15. During assembly, adjacent frame portions 22 include a first frame portion 221 and a second frame portion 222. The first frame portion 221 is disposed within the first step 14, and the second frame portion 222 is disposed within the second step 15. The light-blocking member 11 can block the gap between the first frame portion 221 and the second frame portion 222, preventing light leakage.

[0032] To improve the reliability of the connection between the light-blocking structure 10 and the frame 22, the light-blocking structure 10 also includes a first buckle 16, which is disposed in the first step 14 and connected to the connector 12. The first buckle 16 can engage with the first frame 221 to prevent loosening during the connection between the light-blocking structure 10 and the frame 22.

[0033] Furthermore, the light-blocking structure 10 also includes a second buckle 17, which is disposed within the second step 15. The second buckle 17 is connected to the connector 12 and can engage with the second frame portion 222 to prevent the light-blocking structure 10 from loosening during the connection with the frame portion 22. The first buckle 16 and the second buckle 17 work together to further improve stability.

[0034] The first buckle 16 and the second buckle 17 have similar or identical structures and functions, and both can improve the stability of the connection of the light-blocking structure 10 in the backlight structure.

[0035] Therefore, the light-blocking structure 10 provided in this application can not only prevent light leakage, but also improve the reliability of the connection between the light-blocking structure 10 and the backlight module 100, and prevent light leakage from the corners of the backlight module 100. This light-blocking structure 10 can reduce the difficulty of the assembly process, improve assembly efficiency and the consistency and reliability of the assembly position, avoid disassembly and repair due to light leakage, simplify the production process, and improve production efficiency.

[0036] To achieve rapid and reliable assembly of the light-blocking structure 10 and the backlight module 100, the first latch 16 has a guide surface 161 and a stop surface 162, which are arranged opposite to each other. When the light-blocking structure 10 is assembled onto the backlight module 100, the guide surface 161 of the first latch 16 abuts against the first frame portion 221 until the first latch 16 is fully engaged in the latching hole of the first frame portion 221. The stop surface 162 of the first latch 16 can prevent the light-blocking structure 10 from shifting, preventing the first latch 16 from coming out of the latching hole of the first frame portion 221, thereby preventing light leakage from occurring again.

[0037] The angle between the guide surface 161 and the connector 12 is smaller than the angle between the anti-reverse surface 162 and the connector 12. The guide surface 161 can reduce friction, guide the light-blocking structure 10 to position quickly, and improve assembly efficiency; the anti-reverse surface 162 can prevent the light-blocking structure 10 from shifting, thus improving reliability. Furthermore, the guide surface 161 faces the installation direction of the light-blocking structure 10, while the anti-reverse surface 162 faces away from the installation direction of the light-blocking structure 10.

[0038] Please see Figure 5 , Figure 5 This is a second schematic diagram of the light-blocking structure provided in the embodiments of this application.

[0039] The connector 12 includes a first connecting portion 121 and a second connecting portion 122. The first connecting portion 121 and the second connecting portion 122 extend in different directions or intersect each other, and can support the frame portion 22 with different extension directions. For example, the first connecting portion 121 and the second connecting portion 122 extend in perpendicular directions, so that the connector 12 is "L" shaped.

[0040] The light-blocking member 11 is connected to the first connecting part 121 and the second connecting part 122 respectively. The light-blocking member 11 and the first connecting part 121 form a first step, and the light-blocking member 11 and the second connecting part 122 form a second step.

[0041] The light-blocking component 11 includes a light-blocking body 111, a first extension 112, and a second extension 113. The light-blocking body 111 protrudes from the plane of the connector 12. The light-blocking body 111, the first extension 112, and the first connecting portion 121 together form a first step 14, and the light-blocking body 111, the second extension 113, and the second connecting portion 122 together form a second step 15. The first extension 112 and the second extension 113 form a light-shielding barrier to prevent oblique light from passing through. The light-blocking body 111 can abut against optical components.

[0042] The first extension 112 extends along the edge of the first connecting portion 121, and the second extension 113 extends along the edge of the second connecting portion 122. While allowing sufficient space for the first step 14 and the second step 15, the light-blocking area is maximized to improve light-blocking performance and prevent corner light leakage caused by obliquely incident light.

[0043] To enhance the elastic deformation capability of the light-blocking member 11, which facilitates the fixation of the light-blocking structure 10 onto the back panel 20, the light-blocking member 11 has a notch 114. This allows the light-blocking member 11 to undergo elastic deformation, enabling the first latch 16 and the second latch 17 of the light-blocking structure 10 to engage with the frame portion 22 of the backlight module 100. Correspondingly, the first latch 16 and the second latch 17 on both sides of the notch 114 can change their distance under the elastic deformation of the light-blocking member 11, facilitating engagement with the frame portion 22 of the backlight module 100.

[0044] Please see Figure 6 , Figure 6 for Figure 5 A structural schematic diagram of the cross-section CC. The thickness d1 of the connector 12 is 0.5 to 0.9 mm. The connector 12 is an elastic structure, which facilitates the assembly of the first buckle 16 and the second buckle 17 with the frame 22.

[0045] Please continue reading. Figure 4 The light-blocking member 11 also includes a support member 18, which is connected to the connector 12 and the light-blocking member 11. The support member 18 extends in a direction away from the light-blocking member 11. The end of the support member 18 away from the light-blocking member 11 can abut against the bottom 21 of the back plate 20, thereby supporting the light-blocking structure 10 in the thickness direction of the backlight module 100. It can be understood that when the first buckle 16 is used for fixing, the abutment between the support member 18 and the bottom plate can further improve the reliability of the light-blocking structure 10 in the backlight module 100 and prevent the light-blocking structure 10 from being skewed in the thickness direction of the backlight module 100.

[0046] The light-blocking structure 10 can be made of plastic, which is easy to manufacture and has a low cost.

[0047] Please continue reading. Figure 1 , Figure 7 as well as Figure 8 , Figure 7 for Figure 1 An explosion diagram. Figure 8 for Figure 7 A magnified schematic diagram of a portion D. This application provides a backlight module 100, which includes a backplate 20, optical components, and a light-blocking structure 10. The backplate 20 can be an F-folded backplate 20. Specifically, the backplate 20 includes a bottom 21, a first frame portion 221, and a second frame portion 222, which surround the edge of the bottom 21 to form a receiving cavity 23. The bottom 21, the first frame portion 221, and the second frame portion 222 can be an integral structure. It is understood that the edge of the backplate 20 is folded upward relative to the bottom 21 to form the first frame portion 221 and the second frame portion 222, and the first frame portion 221 and the second frame portion 222 extend in different directions.

[0048] Please see Figure 9 , Figure 9 This is a partial schematic diagram of the backlight module provided in the embodiment of this application. The distance d2 between the first frame portion 221 and the second frame portion 222 is 5 to 9 mm. The distance between the first frame portion 221 and the second frame portion 222 adopts an ultra-narrow opening design to reduce the stress area of ​​the light-blocking structure 10 when assembling the backlight module 100 or the entire TV set, thereby reducing the risk of deformation of the light-blocking structure 10.

[0049] An optical component is disposed within the receiving cavity 23. The optical component includes, but is not limited to, a light source and optical films. The optical films may include diffusers, prism sheets, composite prism sheets, microlens array films, and / or polarizing light enhancement films, etc., to further couple the light emitted by the light source to form a surface light source.

[0050] The light-blocking structure 10 is the same as that in the above embodiments, with the first frame portion 221 abutting against the first step and the second frame portion 222 abutting against the second step. Since the light-blocking structure 10 adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0051] The light-blocking structure 10 also includes a first buckle 16, which is disposed within the first step 14. The first frame portion 221 is provided with a first locking hole 2211, which is correspondingly connected to the first buckle 16, thereby improving the stability of the light-blocking structure 10 fixed to the first frame portion 221. When the first frame portion 221 is engaged within the first step 14, the first frame portion 221 is approximately flush with the light-blocking member 11.

[0052] Furthermore, to improve stability and reduce the complexity of the manufacturing process, the light-blocking structure 10 also includes a second latch 17, which is disposed within the second step 15. The second frame portion 222 is provided with a second latching hole 2221, which is correspondingly connected to the second latch 17. When the second frame portion 222 is latched into the second step 15, it is approximately flush with the light-blocking member 11. The second latch 17 also prevents the light-blocking structure 10 from loosening during the connection with the frame portion 22. The first latch 16 and the second latch 17 work together to further improve stability.

[0053] The light-blocking structure 10 includes a light-blocking body 111, a first extension 112, and a second extension 113. The light-blocking body 111 protrudes from the plane of the connector 12. The light-blocking body 111, the first extension 112, and the connector 12 together form a first step 14, and the light-blocking body 111, the second extension 113, and the connector 12 together form a second step 15. The first extension 112 and the second extension 113 form a light-shielding barrier to prevent oblique light from passing through. The light-blocking body 111 can abut against optical components.

[0054] The light-blocking component 11 also includes a support component 18, which is connected to both the connector 12 and the light-blocking component 11. The support component 18 extends in a direction away from the light-blocking component 11. The support component 18 abuts against the bottom 21, thereby supporting the light-blocking structure 10 in the thickness direction of the backlight module 100. It is understood that when the first buckle 16 is used for fixing, the abutment between the support component 18 and the bottom plate can further improve the reliability of the light-blocking structure 10 in the backlight module 100 and prevent the light-blocking structure 10 from being skewed in the thickness direction of the backlight module 100.

[0055] This application provides a display device, which includes the backlight module 100 in the above embodiments or a backlight module 100 equipped with the light-blocking structure 10 described above. Therefore, it possesses all the beneficial effects of the above embodiments, which will not be elaborated upon here. The display device can be any product or component with display function, such as a television, electronic paper, liquid crystal display, digital photo frame, mobile phone, or tablet computer.

[0056] The display device also includes a liquid crystal module, and the light generated by the backlight module 100 is used to illuminate the liquid crystal module. The backlight module 100 is the backlight module 100 as described in the above embodiments. Since the backlight module 100 adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0057] In the light-blocking structure 10 provided in this embodiment, the light-blocking structure 10 is used in a backlight module 100. The light-blocking structure 10 includes a light-blocking member 11 and a connecting member 12. The light-blocking member 11 is disposed on the connecting member 12 and protrudes from the connecting member 12 to form a first step 14 and a second step 15. The first step 14 and the second step 15 are respectively disposed on both sides of the light-blocking member 11. The backlight module 100 has a plurality of frame portions 22. Adjacent frame portions 22 include a first frame portion 221 and a second frame portion 222. The first frame portion 221 is disposed within the first step 14, and the second frame portion 222 is disposed within the second step 15. The light-blocking member 11 can block the gap between the first frame portion 221 and the second frame portion 222 to prevent light leakage.

[0058] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0059] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features.

[0060] The light-blocking structure, backlight module, and display device provided in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application, and the descriptions of the embodiments above are only for the purpose of helping to understand this application. Furthermore, those skilled in the art will recognize that, based on the ideas of this application, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A light-blocking structure, characterized in that, include: Connectors; A light-blocking component is disposed on the connector and protrudes from the connector to form a first step and a second step, the first step and the second step being respectively disposed on both sides of the light-blocking component.

2. The light-blocking structure according to claim 1, characterized in that, It also includes a first buckle, which is connected to the connector and is disposed within the first step.

3. The light-blocking structure according to claim 2, characterized in that, The first buckle has a guide surface and a stop surface, and the guide surface and the stop surface are arranged opposite to each other.

4. The light-blocking structure according to claim 3, characterized in that, The angle between the guide surface and the connector is smaller than the angle between the anti-reverse surface and the connector.

5. The light-blocking structure according to any one of claims 1 to 4, characterized in that, The connector includes a first connecting portion and a second connecting portion, the first connecting portion and the second connecting portion having different extending directions; the light blocking member is connected to the first connecting portion and the second connecting portion respectively, the light blocking member and the first connecting portion forming the first step, and the light blocking member and the second connecting portion forming the second step.

6. The light-blocking structure according to claim 5, characterized in that, The light-blocking component includes a light-blocking body, a first extension, and a second extension. The light-blocking body, the first extension, and the first connecting portion together form the first step, and the light-blocking body, the second extension, and the second connecting portion together form the second step.

7. The light-blocking structure according to claim 6, characterized in that, The first extension extends along the edge of the first connecting portion, and the second extension extends along the edge of the second connecting portion.

8. The light-blocking structure according to claim 6, characterized in that, The light-blocking body has a notch.

9. The light-blocking structure according to any one of claims 1 to 4, characterized in that, The thickness of the connector is 0.5 to 0.9 mm.

10. The light-blocking structure according to any one of claims 1 to 4, characterized in that, It also includes a support member connected to the connector, the support member extending in a direction away from the light-blocking member.

11. A backlight module, characterized in that, include: The back panel includes a bottom, a first frame portion and a second frame portion. The first frame portion and the second frame portion are arranged around the edge of the bottom to form a receiving cavity. The first frame portion and the second frame portion extend in different directions. The first frame portion is provided with a first card hole. Optical components, the optical components being disposed within the receiving cavity; A light-blocking structure, wherein the light-blocking structure is the light-blocking structure according to any one of claims 1 to 10, wherein the first frame portion abuts against the first step and the second frame portion abuts against the second step.

12. The backlight module according to claim 11, characterized in that, The light-blocking structure includes a support member, which is connected to the connector, the connector, and the light-blocking member. The support member extends in a direction away from the light-blocking member or the support member. The support member abuts against the bottom.

13. A display device, characterized in that, The display device includes the backlight module as described in claim 11 or 12.

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