Backboard and display device

Abstract

The invention discloses a back plate and a display device, 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 surface of the plate body at intervals and extend along a first direction; the multiple auxiliary reinforcing ribs are arranged on the back face of the plate body at intervals and extend in the second direction, the second direction intersects with the first direction, and the width of the main reinforcing ribs is larger than that of the auxiliary reinforcing ribs; a gap is formed between the end, extending towards the main reinforcing rib, of at least one auxiliary reinforcing rib and the side wall of the main reinforcing rib. According to the technical scheme, the problems that in the prior art, the continuity of reinforcing ribs of a back plate is damaged, and the bending resistance needs to be improved are solved.

Description

Technical Field

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

[0002] In display devices such as smart interactive tablets, a backlight module is usually provided to provide a light source. The backlight module includes a back panel to support and protect the optoelectronic devices inside the backlight module. In order to improve its mechanical properties, the existing back panel is usually provided with transverse and vertical reinforcing ribs, and the transverse and vertical reinforcing ribs intersect and connect. However, due to the different widths of the transverse and vertical reinforcing ribs, the continuity of the reinforcing ribs is destroyed at the intersection of the transverse and vertical reinforcing ribs, and the bending resistance needs to be improved. Summary of the invention

[0003] The embodiments of the present application provide a back panel and a display device to solve the problem in the prior art that the continuity of the reinforcing ribs of the back panel is destroyed and the bending resistance performance needs to be improved.

[0004] In a first aspect, an embodiment of the present application provides a backplane, the backplane comprising:

[0005] board body;

[0006] A plurality of main reinforcing ribs, which are arranged at intervals on the back side of the plate body and extend along the first direction; and

[0007] A plurality of secondary reinforcing ribs are arranged at intervals on the back of the plate body and extend along a second direction, the second direction intersects the first direction, and the width of the main reinforcing ribs is greater than the width of the secondary reinforcing ribs;

[0008] An end portion of at least one secondary reinforcing rib extending toward the main reinforcing rib has a gap with a side wall of the main reinforcing rib.

[0009] In some of the embodiments, a gap between an end portion of the secondary reinforcing rib extending toward the primary reinforcing rib and a side wall of the primary reinforcing rib is defined as D, and 20 mm ≤ D ≤ 30 mm.

[0010] In some embodiments, there are at least two pairs of reinforcing ribs disposed on opposite sides of a main reinforcing rib, and there is a gap D between the two pairs of reinforcing ribs and the side wall of the main reinforcing rib, and the gap D between the two pairs of reinforcing ribs and the side wall of the main reinforcing rib is the same.

[0011] In some of the embodiments, the plurality of secondary reinforcing ribs include a first secondary rib and a plurality of second secondary ribs, the first secondary rib being located at an edge of the plate body and extending along the second direction and connected to the plurality of main reinforcing ribs;

[0012] The plurality of second secondary ribs are located in the middle of the plate body and are sequentially spaced along the second direction so that second secondary ribs are provided on opposite sides of each main reinforcing rib and the plurality of second secondary ribs have gaps with the side walls of the main reinforcing ribs.

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

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

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

[0016] In some of the 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 of the embodiments, a plurality of main reinforcing ribs are an integral structure with the plate body;

[0018] And / or, a plurality of secondary reinforcing ribs are an integral structure with the plate body.

[0019] In a second aspect, an embodiment of the present application provides a display device, which includes a backlight module and a display panel arranged on the light-emitting side of the backlight module, and the backlight module includes the back plate as described above.

[0020] Based on the back panel and display device of the embodiment of the present application, a plurality of main reinforcing ribs and a plurality of secondary reinforcing ribs extending in different directions are arranged on the back side of the panel body, and an end portion of at least one secondary reinforcing rib extending toward the main reinforcing rib has a gap with the side wall of the main reinforcing rib, so that the secondary reinforcing ribs and the main reinforcing ribs are not arranged crosswise, thereby avoiding the destruction of the continuity of the main reinforcing ribs after the secondary reinforcing ribs cross the main reinforcing ribs, thereby ensuring the integrity of the main reinforcing ribs, increasing the structural strength of the back panel, and improving the bending stiffness of the back panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0022] Figure 1 This is a structural schematic diagram of an embodiment of a backplane of the present application;

[0023] Figure 2 This is a structural schematic diagram of the backplane of the present application from another perspective;

[0024] Figure 3 It is a schematic diagram of the deformation displacement of the back plate of the prior art when the load is 1500N;

[0025] Figure 4 This is a schematic diagram of the deformation displacement of the back plate of the present application when loaded with 1500N.

[0026] Description of Figure Numbers:

[0027] 100, back plate; 10, plate body; 20, main reinforcement ribs; 30, secondary reinforcement ribs; 31, first secondary reinforcement ribs; 32, second secondary reinforcement ribs; 40, auxiliary ribs.

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

[0029] In order to make the objectives, technical solutions and advantages of the present application clearer, the following part will further describe the embodiments of the present application in detail in conjunction with the accompanying drawings.

[0030] When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are only examples of devices and methods consistent with some aspects of the present application as detailed in the attached claims.

[0031] In the description of the present application, it should be understood that the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances. In addition, in the description of the present application, unless otherwise specified, "multiple" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in this specification are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0033] In display devices such as smart interactive tablets, a backlight module is usually provided to provide a light source. The backlight module includes a back panel to support and protect the optoelectronic devices inside the backlight module. In order to improve its mechanical properties, the existing back panel is usually provided with transverse and vertical reinforcing ribs, and the transverse and vertical reinforcing ribs intersect and connect. However, due to the different widths of the transverse and vertical reinforcing ribs, the continuity of the reinforcing ribs is destroyed at the intersection of the transverse and vertical reinforcing ribs, and the bending resistance needs to be improved.

[0034] To solve the above problems, the first aspect of the present application proposes a display device, which may be an intelligent interactive device such as an all-in-one educational machine. In an embodiment of the present application, the display device includes a backlight module and a display panel arranged on the light-emitting side of the backlight module, and the backlight module includes a back panel 100.

[0035] Among them, 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, 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. The display panel is arranged on the light output side of the backlight module. In this way, the backlight module provides a light source for the display panel. The backplane 100 of the backlight module supports and protects the light board optoelectronic devices inside the backlight module.

[0036] In order to improve the bending resistance of the back plate 100, the back plate 100 can be used to improve the stability of supporting other components. Figure 1 and Figure 2 On the other hand, the present application proposes a back plate 100, comprising 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 arranged at intervals on the back of the plate body 10 and extend along a first direction. The plurality of secondary reinforcing ribs 30 are arranged at intervals on the back of the plate body 10 and extend along a second direction, the second direction intersecting the first direction, and the width of the main reinforcing rib 20 is greater than the width of the secondary reinforcing rib 30. At least one of the ends of the secondary reinforcing rib 30 extending toward the main reinforcing rib 20 has a gap with the side wall of the main reinforcing rib 20.

[0037] Among them, the plate body 10 can be in the form of a galvanized plate or an iron plate. When it is a galvanized plate, the galvanized plate has the advantages of strong load-bearing capacity, high hardness and good anti-rust ability. It should be noted that one surface of the plate body 10 is concave to form a groove, which is used to accommodate optoelectronic devices such as light boards, and the surface of the plate body 10 away from the groove is the back of the plate body 10. In this way, by making a plurality of main reinforcing ribs 20 and a plurality of secondary reinforcing ribs 30 all arranged on the back of the plate body 10, the main reinforcing ribs 20 and the secondary reinforcing ribs 30 are prevented from occupying the space of the groove of the plate body 10, so as to facilitate the installation of optoelectronic devices such as light boards. The first direction and the second direction can be arranged vertically, so that the main reinforcing ribs 20 and the secondary reinforcing ribs 30 are also arranged vertically on the back of the plate body 10. In this embodiment, the plate body 10 can be arranged in a rectangular shape, and the long side of the plate body 10 extends in the same direction as the first direction, and the short side of the plate body 10 extends in the same direction as the second direction. In order to further ensure the strength of the main reinforcing rib 20, the two ends of the main reinforcing rib 20 can be directly extended to the edge of the plate body 10 to avoid bending and facilitate processing, so as to ensure the continuity of the main reinforcing rib 20 and improve the bending resistance of the main reinforcing rib 20. The secondary reinforcing ribs 30 are dispersedly arranged on both sides of the main reinforcing ribs 20 to improve the strength of the portion of the plate body 10 located between the main reinforcing ribs 20. Under such an arrangement, the reinforcing effect can be ensured while reducing the number of main reinforcing ribs 20, thereby reducing material costs. In addition, the secondary reinforcing ribs 30 can also be arranged in a straight line to facilitate processing and avoid bending, so as to ensure the continuity of the secondary reinforcing ribs 30 and improve the bending resistance of the secondary reinforcing ribs 30.

[0038] It should be noted that, in order to fully improve the bending resistance of the back plate 100, the ends of all the secondary reinforcing ribs 30 extending toward the main reinforcing ribs 20 are provided with a gap with the side walls of the main reinforcing ribs 20, that is, all the secondary reinforcing ribs 30 and all the main reinforcing ribs 20 do not cross each other, so as to improve the integrity of all the main reinforcing ribs 20, thereby improving the bending rigidity of the back plate 100. Figure 3 and Figure 4 , which is a schematic diagram of the deformation displacement of the transverse secondary reinforcing ribs and the vertical main reinforcing ribs of the back plate in the prior art, which are cross-connected and loaded with 1500N. Figure 4 This is a schematic diagram of the case where the ends of all the secondary reinforcing ribs 30 extending toward the main reinforcing ribs 20 of the present application have gaps with the side walls of the main reinforcing ribs 20, and the deformation displacement when the load is 1500N. The values ​​on the left are the specific values ​​of the deformation displacement at each position. From the comparison in the figures, it can be seen that when the ends of all the secondary reinforcing ribs 30 extending toward the main reinforcing ribs 20 of the present application have gaps with the side walls of the main reinforcing ribs 20, the displacement deformation under a load of 1500N will be smaller than when the transverse secondary reinforcing ribs and the vertical main reinforcing ribs of the back plate in the prior art are cross-connected.

[0039] Of course, since it is necessary to take into account the anti-twisting performance of a certain area of ​​the back panel 100, the ends of some secondary reinforcing ribs 30 extending toward the main reinforcing ribs 20 can also be connected to the side walls of the main reinforcing ribs 20 to ensure the anti-twisting performance of the back panel 100.

[0040] The technical solution of the present application is to set 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 to make 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 are not cross-arranged, thereby avoiding that the continuity of the main reinforcing rib 20 is destroyed after the secondary reinforcing rib 30 crosses the main reinforcing rib 20, thereby 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 between the end of the secondary reinforcing rib 30 extending toward the main reinforcing rib 20 and the side wall of the main reinforcing rib 20 is defined as D, 20mm≤D≤30mm. In this way, the secondary reinforcing rib 30 can be prevented from being too close to the main reinforcing rib and affecting the continuity of the main reinforcing rib 20, while ensuring the strength requirements of the back plate 100. When the gap D is less than 20 mm, the secondary reinforcing rib 30 will be too close to the main reinforcing rib 20, resulting in the secondary reinforcing rib 30 still affecting the continuity of the main reinforcing rib 20. When the gap D is greater than 30 mm, the gap between the main reinforcing rib 20 and the secondary reinforcing rib 30 will be too large, making the unreinforced area of ​​the back plate 100 larger, affecting the structural strength of the back plate 100. Exemplarily, the gap D between the end of the secondary reinforcing rib 30 extending toward the main reinforcing rib 20 and the side wall of the main reinforcing rib 20 can be 20 mm, 22 mm, 24 mm, 26 mm, 28 mm or 30 mm, etc., without limitation.

[0042] Furthermore, at least two pairs of reinforcing ribs 30 are disposed on opposite sides of a main reinforcing rib 20, and there is a gap D between the two pairs of reinforcing ribs 30 and the side wall of the main reinforcing rib 20, and the gap D between the two pairs of reinforcing ribs 30 and the side wall of the main reinforcing rib 20 is the same. In this way, the two pairs of reinforcing ribs 30 are symmetrically disposed on opposite sides of the main reinforcing rib 20, so that the strength reinforcement effect of the plate body 10 on both sides of the main reinforcing rib 20 is balanced, avoiding affecting the continuity of the main reinforcing rib 20, so that the overall structural strength of the back plate 100 is relatively balanced.

[0043] See also 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, wherein the first secondary rib 31 is located at the edge of the plate body 10 and extends along the 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 sequentially spaced along the second direction, so that the second secondary ribs 32 are provided on opposite sides of each main reinforcing rib 20, and the plurality of second secondary ribs 32 have gaps with the side walls of the main reinforcing ribs 20.

[0044] It is understandable that, since the edge of the board body 10 is subjected to a greater torsional force, and the middle of the board body 10 is subjected to a greater bending force, in order to ensure the overall strength of the backboard 100, the first secondary ribs 31 located at the edge of the board body 10 are connected to the main reinforcing ribs 20 to improve the anti-twisting performance at the edge of the board body 10. The second secondary ribs 32 located in the middle can have a gap with the side walls of the main reinforcing ribs 20, so as to improve the anti-bending performance of the middle of the board body 10.

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

[0046] See also Figure 1 and Figure 2 Optionally, the back plate 100 further includes a plurality of auxiliary ribs 40, which extend along the first direction and are spaced apart from the main reinforcing ribs 20 and connected to at least one secondary reinforcing rib 30, and the width of the auxiliary ribs 40 is less than the width of the main reinforcing ribs 20. By providing the auxiliary ribs 40 to connect the secondary reinforcing ribs 30 and spaced apart from the main reinforcing ribs 20, the continuity of the main reinforcing ribs 20 is not broken, and 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, so that they can be processed synchronously with the secondary reinforcing ribs 30 to improve processing efficiency. The auxiliary ribs 40 can be connected to the middle of the secondary reinforcing ribs 30 to make the structural strength more balanced. Furthermore, the two ends of the auxiliary ribs 40 can be connected to two secondary reinforcing ribs 30 respectively, so as to further improve 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 makes it easier to process 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 difficulty of processing. 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, and the reinforcement effect cannot be guaranteed, 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., without limitation.

[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. The above configuration makes the height of the main reinforcing rib 20 protruding from the plate body 10 much greater than the height of the secondary reinforcing rib 30 protruding from the plate body 10, which not only ensures the reinforcing effect of the main reinforcing rib 20. In addition, the overall force of the back plate 100 is mainly on the main reinforcing rib 20, reducing the influence of the secondary reinforcing rib 30, so as to further improve the structural strength of the back plate 100.

[0049] Optionally, a plurality of 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 with metal materials by stamping or injection molding, which simplifies the manufacturing process and assembly steps, facilitates mass production, and can improve the strength of the main reinforcing ribs 20. Of course, in order to facilitate the maintenance and replacement of the main reinforcing ribs 20, the main reinforcing ribs 20 can also be connected to the plate body 10 in a detachable manner such as screws or buckles.

[0050] Optionally, a plurality of secondary reinforcing ribs 30 are integrally formed with the plate body 10. The secondary reinforcing ribs 30 and the plate body 10 can be integrally formed with metal materials by stamping or injection molding, which simplifies the manufacturing process and assembly steps, facilitates mass production, and can improve the strength of the main reinforcing ribs 20. Of course, in order to facilitate the maintenance and replacement of the secondary reinforcing ribs 30, the main reinforcing ribs 20 can also be connected to the plate body 10 in a detachable manner such as screws or buckles.

[0051] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of this application, it should be understood that if the terms "upper", "lower", "left", "right", etc. indicate an orientation or position relationship based on the orientation or position relationship shown in the drawings, it is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

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

Claims

1. A backplane, characterized in that: include: board body; A plurality of main reinforcing ribs, which are arranged at intervals on the back side of the plate body and extend along a first direction; as well as A plurality of secondary reinforcing ribs, wherein the secondary reinforcing ribs are arranged at intervals on the back of the plate body and extend along a second direction, wherein the second direction intersects the first direction, and the width of the main reinforcing ribs is greater than the width of the secondary reinforcing ribs; An end portion of at least one of the secondary reinforcing ribs extending toward the main reinforcing rib has a gap with a side wall of the main reinforcing rib.

2. The back plate according to claim 1, characterized in that: The gap between the end of the secondary reinforcing rib extending toward the primary reinforcing rib and the side wall of the primary reinforcing rib is defined as D, 20 mm ≤ D ≤ 30 mm.

3. The back plate according to claim 2, characterized in that: There are at least two secondary reinforcing ribs disposed facing each other on opposite sides of a main reinforcing rib, and the two secondary reinforcing ribs and the side walls of the main reinforcing rib both have the gap D, and the gap D between the two secondary reinforcing ribs and the side walls of the main reinforcing rib is the same.

4. The back plate according to claim 1, characterized in that: The plurality of secondary reinforcing ribs include a first secondary rib and a plurality of second secondary ribs, wherein the first secondary rib is located at the edge of the plate body and extends along the second direction and is connected to the plurality of main reinforcing ribs; The plurality of second secondary ribs are located in the middle of the plate body and are spaced apart in sequence along the second direction, so that the second secondary ribs are provided on opposite sides of each of the main reinforcing ribs, and the plurality of second secondary ribs have the gap with the side walls of the main reinforcing ribs.

5. The back plate according to claim 4, characterized in that: The end of the first secondary rib is inclined from the middle of the plate body along the edge corner of the plate body.

6. The back plate according to claim 1, characterized in that: The back plate also includes a plurality of auxiliary ribs, which extend along the first direction, are spaced apart from the main reinforcing ribs, and are 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.

7. The back plate according to 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.

8. The back plate according to 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.

9. The back plate according to claim 1, characterized in that: The main reinforcing ribs are an integral structure with the plate body; And / or, several of the secondary reinforcing ribs are an integral structure with the plate body.

10. A display device, characterized in that: It comprises a backlight module and a display panel arranged on the light-emitting side of the backlight module, wherein the backlight module comprises the back plate as claimed in any one of claims 1 to 9.

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