Backplane and display device

Abstract

The application discloses a back plate and a display device, wherein the back plate comprises a plate body, a plurality of main reinforcing ribs and a plurality of auxiliary reinforcing ribs, the plurality of main reinforcing ribs are arranged on the back of the plate body at intervals and extend along a first direction, the plurality of auxiliary reinforcing ribs are arranged on the back of the plate body at intervals and extend along a second direction, the second direction intersects with the first direction, the width of the main reinforcing rib is greater than the width of the auxiliary reinforcing rib, and at least one end of the auxiliary reinforcing rib extending towards the main reinforcing rib has a gap with the side wall of the main reinforcing rib. The technical scheme of the application solves the problem that the continuity of the reinforcing rib of the back plate in the prior art is destroyed and the bending resistance needs to be improved.

Description

Technical Field

[0001] This application relates to the field of display technology, and in particular to a backplane and display device. Background Technology

[0002] In display devices such as smart interactive flat panels, a backlight module is typically included to provide a light source. The backlight module includes a backplate to support and protect the optoelectronic components inside. To improve its mechanical properties, existing backplates usually have horizontal and vertical reinforcing ribs that intersect and connect. However, because the widths of the horizontal and vertical reinforcing ribs differ, the continuity of the reinforcing ribs is disrupted at their intersections, thus requiring improvement in bending resistance. Summary of the Invention

[0003] This application provides a backplate and a display device to solve the problem that the continuity of the reinforcing ribs of the backplate in the prior art is disrupted and the bending resistance needs to be improved.

[0004] In a first aspect, embodiments of this application provide a backplate, the backplate comprising:

[0005] board body;

[0006] A plurality of main reinforcing ribs are spaced apart on the back side of the plate body and extend along a first direction; and

[0007] Several reinforcing ribs are spaced apart on the back of the plate body and extend along a second direction, which intersects with the first direction. The width of the main reinforcing rib is greater than the width of the secondary reinforcing rib.

[0008] At least one reinforcing rib has a gap between the end of its extension toward the main reinforcing rib and the sidewall of the main reinforcing rib.

[0009] In some embodiments, the gap between the end of the secondary stiffener extending toward the main stiffener and the sidewall of the main stiffener is defined as D, where 20mm≤D≤30mm.

[0010] In some embodiments, at least two sets of reinforcing ribs are arranged facing each other on opposite sides of a main reinforcing rib, and both sets of reinforcing ribs have a gap D with the sidewall of the main reinforcing rib, and the gap D between the two sets of reinforcing ribs and the sidewall of the main reinforcing rib is the same.

[0011] In some embodiments, the plurality of secondary stiffeners include a first secondary stiffener and a plurality of second secondary stiffeners, wherein the first secondary stiffener is located at the edge of the plate body and extends along a second direction, and is connected to the plurality of main stiffeners.

[0012] Several secondary reinforcement bars are located in the middle of the plate body and are arranged at intervals along the second direction, so that each main reinforcement bar has secondary reinforcement bars on both sides, and the secondary reinforcement bars have gaps with the side walls of the main reinforcement bars.

[0013] In some embodiments, the end of the first secondary rib is inclined along the corner of the plate body from the middle of the plate body.

[0014] In some embodiments, the back plate further includes a plurality of auxiliary ribs, which extend along a first direction and are spaced apart from the main reinforcing ribs and connected to at least one reinforcing rib. The width of the auxiliary ribs is smaller than the width of the main reinforcing ribs.

[0015] In some embodiments, the distance between adjacent main stiffeners is greater than or equal to 400 mm and less than or equal to 1000 mm.

[0016] In some embodiments, the ratio A of the height of the main reinforcing rib protruding from the plate body to the height of the secondary reinforcing rib protruding from the plate body is 1.9≤A≤2.1.

[0017] In some embodiments, several main stiffeners are integrally formed with the plate body;

[0018] And / or, several reinforcing ribs are integrated with the plate body as a single structure.

[0019] Secondly, embodiments of this application provide a display device, which includes a backlight module and a display panel disposed on the light-emitting side of the backlight module. The backlight module includes the back plate as described above.

[0020] Based on the back panel and display device of this application embodiment, by providing a plurality of main reinforcing ribs and a plurality of secondary reinforcing ribs extending in different directions on the back side of the panel body, and by making the end of at least one secondary reinforcing rib extending toward the main reinforcing rib have a gap with the side wall of the main reinforcing rib, the secondary reinforcing rib and the main reinforcing rib are not intersected, thereby avoiding the disruption of the continuity of the main reinforcing rib after the secondary reinforcing rib intersects with the main reinforcing rib, thus ensuring the integrity of the main reinforcing rib, increasing the structural strength of the back panel, and improving the bending stiffness of the back panel. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art 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 the structures shown in these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of one embodiment of the backplate of this application;

[0023] Figure 2 This is a structural schematic diagram of the back panel of this application from another perspective;

[0024] Figure 3 This is a schematic diagram of the deformation displacement of the backplate in the prior art when subjected to a load of 1500N.

[0025] Figure 4 This is a schematic diagram of the deformation displacement of the back plate of this application under a load of 1500N.

[0026] Explanation of icon numbers:

[0027] 100. Back plate; 10. Plate body; 20. Main reinforcing rib; 30. Secondary reinforcing rib; 31. First secondary rib; 32. Secondary rib; 40. Auxiliary rib.

[0028] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0030] Where the following description relates to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0031] In the description of this application, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Furthermore, in the description of this application, unless otherwise stated, "multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0033] In display devices such as smart interactive flat panels, a backlight module is typically included to provide a light source. The backlight module includes a backplate to support and protect the optoelectronic components inside. To improve its mechanical properties, existing backplates usually have horizontal and vertical reinforcing ribs that intersect and connect. However, because the widths of the horizontal and vertical reinforcing ribs differ, the continuity of the reinforcing ribs is disrupted at their intersections, thus requiring improvement in bending resistance.

[0034] To address the aforementioned issues, the first aspect of this application proposes a display device, which can be an intelligent interactive device such as an educational all-in-one machine. In an embodiment of this application, the display device includes a backlight module and a display panel disposed on the light-emitting side of the backlight module. The backlight module includes a backplate 100.

[0035] The display panel can be a vertical electric field type liquid crystal display panel, such as a twisted nematic (TN) type liquid crystal display panel or a vertical alignment (VA) type liquid crystal display panel, or a horizontal electric field type liquid crystal display panel, such as a fringe field switching (FFS) type liquid crystal display panel or an in-plane switching (IPS) type liquid crystal display panel. This display panel is located on the light-emitting side of the backlight module. The backlight module thus provides the light source for the display panel. The backplate 100 of the backlight module provides support and protection for the photoelectric devices on the lamp board inside the backlight module.

[0036] To improve the bending resistance of the backplate 100 and thus enhance its stability in supporting other components, please refer to the relevant documentation. Figure 1 and Figure 2 In another aspect, this application proposes a back plate 100, including a plate body 10, a plurality of main reinforcing ribs 20, and a plurality of secondary reinforcing ribs 30. The plurality of main reinforcing ribs 20 are spaced apart on the back surface of the plate body 10 and extend along a first direction. The plurality of secondary reinforcing ribs 30 are spaced apart on the back surface of the plate body 10 and extend along a second direction, which intersects the first direction. The width of the main reinforcing ribs 20 is greater than the width of the secondary reinforcing ribs 30. At least one secondary reinforcing rib 30 has a gap between its end extending toward the main reinforcing rib 20 and the sidewall of the main reinforcing rib 20.

[0037] The plate body 10 can be in the form of galvanized sheet or sheet metal, etc. When it is galvanized sheet, it has advantages such as strong load-bearing capacity, high hardness, and good rust resistance. It should be noted that a groove is recessed on one surface of the plate body 10 to accommodate photoelectric devices such as lamp panels. The surface of the plate body 10 opposite to the groove is the back side of the plate body 10. By placing several main reinforcing ribs 20 and several secondary reinforcing ribs 30 on the back side of the plate body 10, the main reinforcing ribs 20 and secondary reinforcing ribs 30 are avoided from occupying the space of the groove in the plate body 10, thus facilitating the installation of photoelectric devices such as lamp panels. The first direction and the second direction can be perpendicular, so that the main reinforcing ribs 20 and secondary reinforcing ribs 30 are also perpendicularly arranged on the back side of the plate body 10. In this embodiment, the plate body 10 can be rectangular, with the long side extending in the same direction as the first direction, and the short side extending in the same direction as the second direction. To further ensure the strength of the main reinforcing rib 20, both ends of the main reinforcing rib 20 can extend directly to the edge of the plate body 10, avoiding bending, facilitating processing, ensuring the continuity of the main reinforcing rib 20, and improving its bending resistance. Several secondary reinforcing ribs 30 are distributed on both sides of the main reinforcing ribs 20 to increase the strength of the portion of the plate body 10 located between the main reinforcing ribs 20. This arrangement ensures the strengthening effect while reducing the number of main reinforcing ribs 20, thereby reducing material costs. Furthermore, the secondary reinforcing ribs 30 can also be arranged in a straight line, facilitating processing, avoiding bending, ensuring the continuity of the secondary reinforcing ribs 30, and improving their bending resistance.

[0038] It should be noted that, in order to fully improve the bending resistance of the back plate 100, all the ends of the secondary stiffeners 30 extending toward the main stiffeners 20 are spaced from the sidewalls of the main stiffeners 20, so that all the secondary stiffeners 30 and all the main stiffeners 20 do not intersect, thereby improving the integrity of all the main stiffeners 20 and thus improving the bending stiffness of the back plate 100. (Refer to...) Figure 3 and Figure 4 This is a schematic diagram showing the cross-connection of the transverse secondary stiffeners and vertical main stiffeners of the back plate in the prior art, and the deformation displacement under a load of 1500N. Figure 4 This diagram illustrates the deformation displacement of all secondary reinforcing ribs 30 extending toward the main reinforcing rib 20 with gaps between the ends and the sidewalls of the main reinforcing rib 20, under a load of 1500N. The values ​​on the left are the specific values ​​of the deformation displacement at each location. As can be seen from the comparison in the diagram, when all secondary reinforcing ribs 30 extending toward the main reinforcing rib 20 have gaps between the ends and the sidewalls of the main reinforcing rib 20, the displacement deformation under a load of 1500N is significantly less than that of the prior art when the transverse secondary reinforcing ribs and vertical main reinforcing ribs of the back plate are intersected.

[0039] Of course, since it is necessary to take into account the torsional resistance of a certain area of ​​the back plate 100, the ends of some of the secondary reinforcing ribs 30 extending toward the main reinforcing rib 20 can be connected to the sidewall of the main reinforcing rib 20, so as to ensure the torsional resistance of the back plate 100.

[0040] The technical solution of this application provides a plurality of main reinforcing ribs 20 and a plurality of secondary reinforcing ribs 30 extending in different directions on the back side of the plate body 10, and makes the end of at least one secondary reinforcing rib 30 extending toward the main reinforcing rib 20 have a gap with the side wall of the main reinforcing rib 20, so that the secondary reinforcing rib 30 and the main reinforcing rib 20 do not cross each other, thereby avoiding the disruption of the continuity of the main reinforcing rib 20 after the secondary reinforcing rib 30 crosses with the main reinforcing rib 20, thus ensuring the integrity of the main reinforcing rib 20, increasing the structural strength of the back plate 100, and improving the bending stiffness of the back plate 100.

[0041] Reference Figure 1 and Figure 2 Optionally, the gap D between the end of the secondary stiffener 30 extending toward the main stiffener 20 and the sidewall of the main stiffener 20 is defined as 20mm ≤ D ≤ 30mm. This avoids the secondary stiffener 30 from being too close to the main stiffener, thus affecting the continuity of the main stiffener 20, while ensuring the strength requirements of the back plate 100. When the gap D is less than 20mm, the secondary stiffener 30 will be too close to the main stiffener 20, causing the secondary stiffener 30 to still affect the continuity of the main stiffener 20. When the gap D is greater than 30mm, the gap between the main stiffener 20 and the secondary stiffener 30 will be too large, resulting in a large unreinforced area of ​​the back plate 100, affecting the structural strength of the back plate 100. Exemplarily, the gap D between the end of the secondary stiffener 30 extending toward the main stiffener 20 and the sidewall of the main stiffener 20 can be 20mm, 22mm, 24mm, 26mm, 28mm, or 30mm, etc., and is not limited thereto.

[0042] Furthermore, at least two sets of reinforcing ribs 30 are arranged facing each other on opposite sides of a main reinforcing rib 20. Both sets of reinforcing ribs 30 and the sidewalls of the main reinforcing rib 20 have a gap D, and the gap D between the two sets of reinforcing ribs 30 and the sidewalls of the main reinforcing rib 20 is the same. Thus, by symmetrically arranging the two sets of reinforcing ribs 30 on opposite sides of the main reinforcing rib 20, the strength reinforcement effect of the plate body 10 in the regions on both sides of the main reinforcing rib 20 is balanced, avoiding affecting the continuity of the main reinforcing rib 20, and resulting in a more balanced overall structural strength of the back plate 100.

[0043] See Figure 1 and Figure 2Optionally, the plurality of secondary reinforcing ribs 30 include a first secondary rib 31 and a plurality of second secondary ribs 32. The first secondary rib 31 is located at the edge of the plate body 10 and extends along a second direction, and is connected to the plurality of main reinforcing ribs 20. The plurality of second secondary ribs 32 are located in the middle of the plate body 10 and are arranged sequentially at intervals along the second direction, so that each main reinforcing rib 20 has a second secondary rib 32 on its opposite sides, and the plurality of second secondary ribs 32 have gaps with the sidewalls of the main reinforcing ribs 20.

[0044] Understandably, the edges of the plate body 10 experience greater torsional forces, while the center experiences greater bending forces. Therefore, to ensure the overall strength of the back plate 100, the first secondary rib 31 located at the edge of the plate body 10 is connected to the main reinforcing rib 20 to improve the torsional resistance at the edge of the plate body 10. Meanwhile, the second secondary rib 32 located in the center has gaps between it and the sidewalls of the main reinforcing rib 20, thereby improving the bending resistance in the center of the plate body 10.

[0045] Furthermore, the end of the first secondary rib 31 is inclined along the corner of the plate body 10 from the middle. This not only extends the length of the first secondary rib 31 to ensure its structural stability, but also improves the strength at the corner of the plate body 10.

[0046] See Figure 1 and Figure 2 Optionally, the back plate 100 further includes a plurality of auxiliary ribs 40, which extend along a first direction and are spaced apart from the main reinforcing ribs 20 and connected to at least one secondary reinforcing rib 30. The width of the auxiliary ribs 40 is smaller than the width of the main reinforcing ribs 20. By connecting the secondary reinforcing ribs 30 with the auxiliary ribs 40 and spaced apart from the main reinforcing ribs 20, the continuity of the main reinforcing ribs 20 is not broken, while the strength of the secondary reinforcing ribs 30 is improved. The auxiliary ribs 40 can have the same width as the secondary reinforcing ribs 30, allowing them to be processed simultaneously to improve production efficiency. The auxiliary ribs 40 can be connected to the middle of the secondary reinforcing ribs 30 to achieve a more balanced structural strength. Furthermore, the two ends of the auxiliary ribs 40 can be connected to two secondary reinforcing ribs 30 respectively, thereby further improving the structural strength and reinforcement effect of the auxiliary ribs 40.

[0047] Optionally, the distance between adjacent main reinforcing ribs 20 is greater than or equal to 400 mm and less than or equal to 1000 mm. This facilitates the processing of the main reinforcing ribs 20 on the plate body 10 while ensuring the structural strength of the back plate 100. When the distance between adjacent main reinforcing ribs 20 is less than 400 mm, the arrangement of several main reinforcing ribs 20 will be too dense, resulting in a large number of main reinforcing ribs 20 that need to be processed, increasing the processing difficulty. When the distance between adjacent main reinforcing ribs 20 is greater than 1000 mm, the spacing between the main reinforcing ribs 20 will be too large, failing to guarantee the reinforcement effect, thereby affecting the overall structural strength of the back plate 100. Exemplarily, the distance between adjacent main reinforcing ribs 20 can be 400 mm, 500 mm, 600 mm, 700 mm, 800 mm, 900 mm, or 1000 mm, etc., and is not limited thereto.

[0048] Optionally, the ratio A of the height of the main reinforcing rib 20 protruding from the plate body 10 to the height of the secondary reinforcing rib 30 protruding from the plate body 10 is 1.9 ≤ A ≤ 2.1. This arrangement ensures that the height of the main reinforcing rib 20 protruding from the plate body 10 is significantly greater than the height of the secondary reinforcing rib 30, thus guaranteeing the reinforcing effect of the main reinforcing rib 20. Furthermore, it ensures that the overall stress on the back plate 100 is primarily borne by the main reinforcing rib 20, reducing the influence of the secondary reinforcing rib 30, thereby further improving the structural strength of the back plate 100.

[0049] Optionally, several main reinforcing ribs 20 are integrally formed with the plate body 10. The main reinforcing ribs 20 and the plate body 10 can be integrally formed from metal materials through stamping or injection molding, simplifying the manufacturing process and assembly steps, facilitating mass production, and improving the strength of the main reinforcing ribs 20. Of course, for ease of maintenance and replacement, the main reinforcing ribs 20 can also be connected to the plate body 10 in a detachable manner using screws or clips.

[0050] Optionally, several secondary reinforcing ribs 30 are integrally formed with the plate body 10. These secondary reinforcing ribs 30 and the plate body 10 can be integrally formed from metal materials through stamping or injection molding, simplifying the manufacturing process and assembly steps, facilitating mass production, and improving the strength of the main reinforcing ribs 20. Of course, for ease of maintenance and replacement of the secondary reinforcing ribs 30, the main reinforcing ribs 20 can also be connected to the plate body 10 via detachable methods such as screws or clips.

[0051] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0052] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A backplate, characterized in that, include: board body; A plurality of main reinforcing ribs are spaced apart on the back side of the plate body and extend along a first direction; as well as A plurality of secondary reinforcing ribs are spaced apart on the back side of the plate body and extend along a second direction, which intersects with the first direction. The width of the main reinforcing rib is greater than the width of the secondary reinforcing ribs. The secondary reinforcing ribs include a first secondary rib and several second secondary ribs. The first secondary rib is located at the edge of the plate body and extends along the second direction, and is connected to several main reinforcing ribs. Several second secondary ribs are located in the middle of the plate body and are arranged at intervals along the second direction, so that each main reinforcing rib has a second secondary rib on both sides, and the several second secondary ribs have a gap with the side wall of the main reinforcing rib.

2. The backplate as described in claim 1, characterized in that, The gap between the end of the secondary reinforcing rib extending toward the main reinforcing rib and the sidewall of the main reinforcing rib is defined as D, where 20mm≤D≤30mm.

3. The backplate as described in claim 2, characterized in that, At least two of the secondary reinforcing ribs are arranged facing each other on opposite sides of a main reinforcing rib, and both of the secondary reinforcing ribs and the sidewalls of the main reinforcing rib have the gap D, and the gap D between the two secondary reinforcing ribs and the sidewalls of the main reinforcing rib is the same.

4. The backplate as described in claim 1, characterized in that, The end of the first secondary rib is inclined along the corner of the plate body from the middle of the plate body.

5. The backplate as described in claim 1, characterized in that, The back plate also includes a plurality of auxiliary ribs, which extend along the first direction and are spaced apart from the main reinforcing ribs and connected to at least one of the secondary reinforcing ribs. The width of the auxiliary ribs is smaller than the width of the main reinforcing ribs.

6. The backplate as described in claim 1, characterized in that, The distance between adjacent main reinforcing ribs is greater than or equal to 400 mm and less than or equal to 1000 mm.

7. The backplate as described in claim 1, characterized in that, The ratio A of the height of the main reinforcing rib protruding from the plate body to the height of the secondary reinforcing rib protruding from the plate body is 1.9≤A≤2.

1.

8. The backplate as described in claim 1, characterized in that, The main reinforcing ribs are integrally formed with the plate body; And / or, several of the aforementioned secondary reinforcing ribs are integrally formed with the plate body.

9. A display device, characterized in that, The device includes a backlight module and a display panel disposed on the light-emitting side of the backlight module, wherein the backlight module includes a back plate as described in any one of claims 1 to 8.

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