Display device

Abstract

The invention relates to the technical field of display, in particular to a display device. Comprising a display panel; the back plate comprises a back plate body which is arranged on the rear side of the display panel at an interval with the display panel; the edge of the back plate body protrudes forwards to form the side plate; the supporting plate is arranged opposite to the backboard body, the first end of the supporting plate is connected with the inner wall of the side plate, and an adhesive tape used for fixing the display panel is arranged on the side face, away from the backboard body, of the supporting plate; wherein the second end and the first end of the supporting plate are oppositely arranged, and the supporting plate is bent forwards or backwards at least once between the first end and the second end to form a layer of first supporting part and at least one layer of second supporting part stacked with the first supporting part; the projection of the adhesive tape on the backboard body at least partially coincides with the projection of the second supporting part on the backboard body. The strength of the stress surface on the back plate is improved, the problem of local sinking under the action of external force is avoided, and the problems of adhesive tape cracking and panel light leakage are solved.

Description

Technical Field

[0001] This application relates to the field of display technologies, and in particular, to a display device. Background Art

[0002] Competition in current display products is becoming increasingly fierce. In the industry, an F-shaped bent backplane structure is generally adopted to achieve the advantages of an ultra-narrow appearance and low cost.

[0003] In the structure of the F-shaped bent backplane, the panel is pasted on the stress-bearing surface of the backplane through panel tape. During the assembly, turnover, and use of the TV, under the action of an external force perpendicular to the panel, the overall structure is ensured to be stable and reliable through the support of the stress-bearing surface of the backplane. In the industry, the backplane is formed by cold stamping, and the width of the stress-bearing surface is within 8 mm. The stress-bearing surface of the backplane is obtained by bending, which easily leads to insufficient strength of the stress-bearing surface. The strength of the stress-bearing surface of the backplane is a key factor affecting the reliability of the overall structure. When the strength of the stress-bearing surface is insufficient, local depression or collapse occurs under the action of an external force, resulting in abnormal problems such as tape cracking or panel light leakage. Summary of the Invention

[0004] In order to solve the above technical problems or at least partially solve the above technical problems, this application provides a display device.

[0005] This application provides a display device, including

[0006] A display panel for displaying image information;

[0007] A backplane, the backplane includes:

[0008] A backplane body, which is disposed at an interval from the display panel at the rear of the display panel;

[0009] Side plates, which protrude forward from the edge of the backplane body;

[0010] Support plates, which are disposed opposite to the backplane body, and a first end of the support plate is connected to the inner wall of the side plate. A tape for fixing the display panel is provided on a side surface of the support plate facing away from the backplane body;

[0011] Wherein, a second end of the support plate is disposed opposite to the first end, and the support plate is bent forward or backward at least once between the first end and the second end to form a first support portion and at least one second support portion stacked with the first support portion;

[0012] At least a part of the projection of the tape on the backplane body coincides with at least a part of the projection of the second support portion on the backplane body.

[0013] In some embodiments, the bending angles of all the bending points formed between the first end and the second end of the support plate are all 180°.

[0014] In some embodiments, the width of the second support portion is A1, the width of the tape is C, and A1 ≥ C / 3.

[0015] In some embodiments, the projection of the tape on the backplane body is located within the projection of the second support portion on the backplane body.

[0016] In some embodiments, the width of the second support portion is less than the width of the first support portion.

[0017] In some embodiments, the minimum distance between the second support portion and the side plate is x, and 0 < x < C / 3.

[0018] In some embodiments, the material of the backplane is galvanized steel sheet, and the thickness of the backplane is less than or equal to 0.6 mm.

[0019] In some embodiments, the support plate is bent backward between the first end and the second end to form the first support portion and the second support portion located between the first support portion and the backplane body, and there is a gap between one layer of the second support portion far from the first support portion and the backplane body.

[0020] In some embodiments, the side plate is formed by bending the backplane body forward, and the side plate is bent inward twice to form a connecting plate and the support plate. The connecting plate is attached to the inner wall of the side plate, and the support plate is formed at one end of the connecting plate close to the backplane body; the angle of the first inward bend of the side plate is 180°, and the angle of the second bend of the side plate is 90°.

[0021] The technical solution provided by the embodiments of the present application has the following advantages compared with the prior art:

[0022] The display device provided by the embodiments of the present application forms a first support portion of one layer and at least one layer of second support portions by bending the support plate forward or backward, which is equivalent to thickening the stress surface of the traditional backplane by at least two times, thereby improving the strength of the stress surface on the backplane, avoiding the problem of local depression under the action of external force, solving the problems of tape cracking and panel light leakage caused by the depression of the stress surface of the backplane, and further improving the stability of the overall structure of the display device. At the same time, at least part of the projection of the tape on the backplane body coincides with the projection of the second support portion on the backplane body. That is to say, at least part of the support plate is thickened at the position opposite to the tape. This part of the support plate is not easily depressed under the action of external force. Even if depressions or collapses occur at other positions, it does not affect the overall sealing effect of the tape. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings herein are incorporated into and form a part of this specification, showing embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application.

[0024] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following briefly introduces the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0025] Figure 1 Schematic structural diagram of a display device according to some embodiments of the present application;

[0026] Figure 2 Schematic structural diagram of a backplane bent backward twice according to some embodiments of the present application;

[0027] Figure 3 Schematic structural diagram of a backplane bent backward once according to some embodiments of the present application;

[0028] Figure 4 Schematic structural diagram of a backplane bent forward twice according to some embodiments of the present application;

[0029] Figure 5 Schematic dimension diagram of a backplane according to some embodiments of the present application;

[0030] Figure 6 Schematic structural diagram of a backplane bent backward twice and abutting and fixing with a side plate according to some embodiments of the present application;

[0031] Figure 7 Schematic structural diagram of a backplane bent backward once and abutting and fixing with a side plate according to some embodiments of the present application;

[0032] Figure 8 Schematic structural diagram of a backplane bent forward twice and abutting and fixing with a side plate according to some embodiments of the present application;

[0033] Figure 9 Schematic structural diagram of a first support portion and a second support portion arranged at an angle according to some embodiments of the present application;

[0034] Figure 10 Schematic structural diagram of a backplane bent backward once and arranged at an angle according to some embodiments of the present application;

[0035] Figure 11 Schematic structural diagram of a reinforcing plate arranged on a support plate according to some embodiments of the present application;

[0036] Figure 12Projection relationship 1 of the tape on the backplane body and the reinforcement plate on the backplane body in some embodiments of the present application;

[0037] Figure 13 Projection relationship 2 of the tape on the backplane body and the reinforcement plate on the backplane body in some embodiments of the present application;

[0038] Figure 14 Projection relationship 3 of the tape on the backplane body and the reinforcement plate on the backplane body in some embodiments of the present application;

[0039] Figure 15 Projection relationship 4 of the tape on the backplane body and the reinforcement plate on the backplane body in some embodiments of the present application;

[0040] Figure 16 Projection relationship 5 of the tape on the backplane body and the reinforcement plate on the backplane body in some embodiments of the present application;

[0041] Figure 17 Schematic structural diagram of the reinforcement plate and the side plate abutting and fixing in some embodiments of the present application.

[0042] Wherein, 1. Backplane; 10. Backplane body; 11. Side plate; 12. Connecting plate; 13. Support plate; 13a. First end; 13b. Second end; 131. First support portion; 132. Second support portion; 14. Reinforcement plate; 14a. Third end; 14b. Fourth end; 141. Third side; 142. Fourth side; 2. Display panel; 3. Tape; 301. First side; 301. Second side; 4. Optical component; 5. Rear shell; 6. Front shell assembly; 7. Middle frame. Detailed implementation manners

[0043] In order to more clearly understand the above objects, features and advantages of the present application, the solutions of the present application will be further described below. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0044] Many specific details are set forth in the following description in order to fully understand the present application, but the present application may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of the present application, rather than all embodiments.

[0045] It should be noted that the directional indications (such as up, down, left, right, front, back...) described in the present invention are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0046] 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 quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, unless otherwise specified, the meaning of "a plurality" is two or more.

[0047] In the description of this application, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances. Additionally, when describing pipelines, the terms "connected" and "coupled" used in this application have the meaning of conducting. The specific meaning needs to be understood in combination with the context.

[0048] In the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or explanations. Any embodiment or design described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or having more advantages than other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present relevant concepts in a specific manner.

[0049] As Figure 1 shown, the display device includes:

[0050] A display panel 2 for displaying image information; the display panel 2 itself does not generate light sources, but receives light from the backlight module to form an image. When external image information is input to the main control board, the main control board controls the display panel 2 so that after the display panel 2 receives an electrical signal, the liquid crystals inside the display panel 2 are deflected, causing the liquid crystal layer to be in a state where it can either allow the backlight to pass through or block the light, and can convert the light into tiny pixel points to generate dot, line, and surface images.

[0051] A backplane 1 disposed on the rear side of the display panel 2 for supporting the display panel 22;

[0052] A rear case 5 disposed on the rear side of the back side;

[0053] A middle frame 7;

[0054] A front case assembly 6 disposed on the front side of the display panel 2, and the edge of the front case assembly 6 is fixedly connected to the edge of the rear case 5;

[0055] A backlight module is disposed between a display panel 2 and a backplane 1. The backlight module can make the brightness of the display panel 2 more uniform, reduce power consumption, and have a thinner and lighter appearance. The backlight module includes a light bar that emits light and an optical component 4. The optical component 4 includes a reflector, a diffuser plate, and a film. The light bar is disposed on the front side of the backplane 1, and the diffuser plate is disposed on the front side of the light bar. When the light bar is energized to emit light, the light enters the diffuser plate, and the diffuser plate can refract the light randomly in all directions, so that the light on the light-emitting surface of the backlight module is as uniform as possible, thereby solving the problem of uneven light from the light-emitting light sources in the light bar.

[0056] In the structure of a display device, in order to achieve the effects of an ultra-narrow appearance and low cost, the backplane 1 is generally thinned. However, since the backplane 1 also has to play a role in supporting the display panel 2, in a traditional display device, the minimum thickness that the backplane 1 can achieve currently is 8 mm. When an external force perpendicular to the direction of the display panel 2 is applied, the strength of the force-bearing surface of the backplane 1 is insufficient, and local depression or collapse is likely to occur, resulting in abnormal problems such as cracking of the tape 3 or light leakage of the display panel 2.

[0057] In an embodiment of the present application, in order to solve the problem of insufficient strength of the force-bearing surface of the backplane 1 and local depression, a display device is proposed, and the structure of the backplane 1 is mainly improved in this display device.

[0058] Among them, as Figures 2 to 5 shown, the backplane 1 includes:

[0059] A backplane body 10, the backplane body 10 is a flat plate-like structure, and is disposed at the rear side of the display panel 2 and spaced apart from the display panel 2 during installation;

[0060] Side plates 11, disposed on the front side of the backplane body 10, formed by protruding forward from the edge of the backplane body 10. Specifically, the side plates 11 are formed on the top side, left side, and right side of the backplane body 10;

[0061] A support plate 13, disposed opposite to the backplane 1, the support plate 13 has a first end 13a and a second end 13b disposed opposite to each other, and the first end 13a of the support plate 13 is connected to the inner wall of the side plate 11. The second end 13b of the support plate 13 is a free end. A tape 3 for fixing the display panel 2 is provided on the side surface of the support plate 13 facing away from the backplane body 10. The top side, left side, and right side of the display panel 2 are respectively fixedly connected to the support plates 13 on the top side, left side, and right side of the backplane 1 through the tape 3, and the support plate 13 plays a supporting role for the display panel 2.

[0062] On the left side of the display device, the first end 13a of the support plate 13 is located on the left of the second end 13b; the support plate 13 is bent forward or backward at least once between the first end 13a and the second end 13b to form a first support portion 131 and at least one second support portion 132 stacked with the first support portion 131.

[0063] Exemplarily, in combination with Figure 3 and Figure 4 , when the support plate 13 is bent once, a first support portion 131 and a second support portion 132 are formed; when the support plate 13 is bent twice, a first support portion 131 and two second support portions 132 are formed. As shown in combination with Figure 2 , when the support plate 13 is bent n times, a first support portion 131 and n second support portions 132 are formed, where n is a positive number greater than 0.

[0064] The bending direction of the support plate 13 can be forward or backward. When the support plate 13 is bent backward, the second support portion 132 is formed at the rear side of the first support portion 131, and the tape 3 is disposed on the front surface of the first support portion 131; when the support plate 13 is bent forward, the second support portion 132 is formed at the front side of the first support portion 131, and the tape 3 is disposed on the front surface of the foremost second support portion 132.

[0065] Exemplarily, as shown in combination with Figure 3 , the bending direction of the support plate 13 is backward, and the second support portion 132 is formed at the rear side of the first support portion 131; as shown in combination with Figure 4 , the bending direction of the support plate 13 is forward, and the second support portion 132 is formed at the front side of the first support portion 131.

[0066] It should be noted that the first support portion 131 is formed between the first end 13a of the support plate 13 and the first bending point from the first end 13a to the second end 13b, and the second support portion 132 is formed between the first bending point from the first end 13a to the second end 13b and the second end 13b, that is, between any two bending points between the first bending point and the second end 13b, and between the last bending point and the second end 13b.

[0067] In order to prevent the back plate 1 from being recessed under the action of an external force, resulting in the cracking and failure of the tape 3, and further causing light leakage, in some embodiments of the present application, the width of the second support portion 132 needs to be set according to the position of the tape 3 and the width of the tape 3. Specifically, at least a part of the projection of the tape 3 on the back plate body 10 coincides with the projection of the second support portion 132 on the back plate body 10, so as to enhance the strength of the support plate 13 corresponding to the tape 3 and prevent the tape 3 from cracking and completely failing due to the recess of the support plate 13.

[0068] That is to say, at least part of the support plate 13 is thickened at the position opposite to the tape 3. This part of the support plate 13 is not easily recessed under the action of an external force. Even if recessions or collapses occur at other positions, it does not affect the overall sealing effect of the tape 3.

[0069] Furthermore, in some embodiments of the present application, in order to further improve the strength of the support plate 13, the bending angles of all the bending points formed between the first end 13a and the second end 13b of the support plate 13 are all 180°, so that the second support portion 132 is arranged in a fitting manner with the first support portion 131, thereby forming a support plate 13 with double thickness and achieving the effect of enhancing the strength of the support plate 13.

[0070] Furthermore, in combination with Figure 5 As shown, in some embodiments of the present application, the width of the second support portion 132 is A1, and the width of the tape 3 is C. To meet the strength requirements of the support plate 13, the value of A1 should be at least not less than C / 3, so as to truly strengthen the strength of the support plate 13.

[0071] Exemplarily, taking the left side of the display device as an example, when the value of A1 is too small, the overlapping surface of the second support portion 132 and the first support portion 131 is small and concentrated at the free end of the support plate 13. In this way, only the strength of the free end of the support plate 13 can be strengthened. When an external force acts on the display panel 2, the thickness of the support plate 13 on the left side of the second support portion 132 is not increased, and the support strength is still insufficient, which is likely to cause local recessions, and further lead to phenomena such as cracking and light leakage of the tape 3.

[0072] Furthermore, in some embodiments of the present application, the projection of the tape 3 on the backplane body 10 is located within the projection of the second support portion 132 on the backplane body 10. That is to say, at the position corresponding to the tape 3, the second support portion 132 is provided to thicken the support plate 13 at the position corresponding to the tape 3, thereby improving the strength of the support plate 13 at the position corresponding to the tape 3 and avoiding recessions at the position corresponding to the tape 3 when the support plate 13 is subjected to an external force, which affects the sealing effect of the tape 3.

[0073] Furthermore, in the embodiments of the present application, in order to improve the strength of the support plate 13 at various places, the width of the second support portion 132 needs to be as large as possible, but the width of the second support portion 132 needs to be smaller than the width of the first support portion 131. In the most preferred embodiment, the width of the second support portion 132 is infinitely close to the width of the first support portion 131, but the second support portion 132 and the side plate 11 can be in contact without requiring fixation.

[0074] Specifically, the minimum distance between the second support portion 132 and the side plate 11 is x, where 0 < x < C / 3. When x > C / 3, the overall width of the second support portion 132 is relatively small, which will affect the strength of the support plate 13.

[0075] Furthermore, since the support plate 13 is bent, a first support portion 131 and at least one layer of second support portion 132 are formed, which is equivalent to doubling the thickness of the support plate 13. Therefore, the overall thickness of the back plate 1 can be thinned. In some embodiments of the present application, the material of the back plate 1 is galvanized steel sheet, and the thickness of the back plate 1 is less than or equal to 0.6 mm. Even if the thickness of the back plate 1 is thinned, due to the doubling of the thickness at the support plate 13, it can still enhance the support strength and can also avoid layout depressions.

[0076] Furthermore, in some preferred embodiments of the present application, the support plate 13 is bent backward between the first end 13a and the second end 13b to form a first support portion 131 and a second support portion 132 located between the first support portion 131 and the back plate body 10, and there is a gap between the second support portion 132 away from the first support portion 131 and the back plate body 10, that is, there is a gap between the last layer of the second support portion 132 and the back plate body 10, which does not affect the fixed installation of the backlight assembly.

[0077] Considering the installation of the backlight assembly and the overall thickness of the display device, in some embodiments of the present application, it is only necessary to bend the support plate 13 backward once to form a first support portion 131 and a second support portion 132. The bending angle of the support plate 13 bent backward is 180°, so that the second support portion 132 is attached to the rear side of the first support portion 131, achieving an effective effect of improving strength.

[0078] The support plate 13 can be separately provided from the back plate body 10 and the side plate 11 and fixed together by welding or other fixing means, or it can also be formed by bending the back plate body 10 by stamping process. The back plate 1 formed by bending the back plate body 10 is an F-shaped back plate.

[0079] Exemplarily, in some embodiments of the present application, the side plate 11 is formed by bending the top side, left side and right side of the back plate body 10 forward, and the side plate 11 is bent inward by 180 degrees to form a connecting plate 12. The connecting plate 12 is attached to the inner wall of the side plate 11, and the connecting plate 12 is bent 90° to form a support plate 13. The support plate 13 is formed at one end of the connecting plate 12 close to the back plate body 10, and there is a certain distance between the support plate 13 and the frontmost end of the side plate 11 to form an installation groove for placing the display panel 2 on the front side of the back plate 1.

[0080] In some embodiments of the present application, after the support plate 13 is bent to form the first support portion 131 and the second support portion 132, the second support portion 132 needs to be flattened so that the first support portion 131 can fit with the second support portion.

[0081] In addition, in order to solve the problem of local depression of the support plate 13 after being stressed, it can also be achieved without the above-mentioned bending method.

[0082] Specifically, in some other embodiments of the present application,

[0083] As Figure 11 shown, in order to strengthen the structural strength of the support plate 13, a reinforcing plate 14 is provided on the side of the support plate 13 facing the back plate 1, that is, the reinforcing plate 14 is provided on the rear side of the support plate 13, and the reinforcing plate 14 is fixedly attached to the rear side of the support plate 13.

[0084] Among them, at least part of the projection of the tape 3 on the back plate body 10 coincides with the projection of the reinforcing plate 14 on the back plate body 10.

[0085] Specifically, the projection of the tape 3 on the back plate body 10 includes a first side edge 301 and a second side edge 301 which are oppositely arranged, and both the first side edge 301 and the second side edge 301 are parallel to the side plate 11. The projection of the reinforcing plate 14 on the back plate body 10 includes a third side edge 141 and a fourth side edge 142, and the third side edge 141 and the fourth side edge 142 are parallel to the side plate 11.

[0086] Combined with Figure 12 shown, the first side edge 301 coincides with the third side edge 141, and the second side edge 301 coincides with the fourth side edge 142. At this time, the projection of the tape 3 on the back plate body 10 completely coincides with the projection of the reinforcing plate 14 on the back plate body 10;

[0087] Or, one of the first side edge 301 and the second side edge 301 is located between the third side edge 141 and the fourth side edge 142, and the other coincides with the third side edge 141 or the fourth side edge 142. At this time, one side of the projection of the tape 3 on the back plate body 10 coincides with the projection of the reinforcing plate 14 on the back plate body 10, and the other side falls within the projection of the reinforcing plate 14 on the back plate body 10;

[0088] Or, combined with Figure 14 and Figure 15 shown, one of the first side edge 301 and the second side edge 301 is located between the third side edge 141 and the fourth side edge 142, and the other is located outside the third side edge 141 or the fourth side edge 142, that is, one side of the projection of the tape 3 on the back plate body 10 is located within the projection of the reinforcing plate 14 on the back plate body 10, and the other side is located outside the projection of the reinforcing plate 14 on the back plate body 10;

[0089] Alternatively, in combination with Figure 13 As shown, both the first side 301 and the second side 301 are located between the third side 141 and the fourth side 142. That is to say, the projection of the tape 3 on the backplane body 10 completely falls within the projection of the reinforcing plate 14 on the backplane body 10.

[0090] In addition, there is another implementation manner. In combination with Figure 16 As shown, both the third side 141 and the fourth side 142 are located between the first side 301 and the second side 301.

[0091] In the above several possible embodiments, the tape 3 and the reinforcing plate 14 are partially or completely overlapped. At the position where the reinforcing plate 14 is provided, the support strength of the backplane 1 for the display panel 2 is increased. Since the reinforcing plate 14 and the tape 3 are partially overlapped, at the overlapping portion, the support plate 13 is not likely to be recessed, and the tape 3 at the overlapping portion is not likely to crack, thereby avoiding the problem of complete failure of the tape 3 and solving the problem of light leakage of the display device caused by the cracking of the tape 3.

[0092] Further, in some embodiments, the width of the reinforcing plate 14 is less than or equal to the width of the support plate 13.

[0093] Furthermore, the side surface of the reinforcing plate 14 away from the side plate 11 does not protrude from the side surface of the support plate 13 away from the side plate 11. To avoid the reinforcing plate 14 affecting in the display device, the reinforcing plate 14 blocks the backlight assembly and affects the use effect of the backlight assembly.

[0094] Further, in some embodiments of the present application, the distance between the side surface of the reinforcing plate 14 facing the side plate 11 and the inner wall of the side plate 11 is y, y≥0. That is to say, the side surface of the reinforcing plate 14 facing the side plate 11 can abut against the inner wall of the side plate 11 or form a gap with the inner wall of the side plate 11. Whether the reinforcing plate 14 abuts against the inner wall of the side plate 11 or not does not affect the function of the reinforcing plate 14.

[0095] The material of the backplane 1 also adopts a galvanized steel sheet, and the thickness of the backplane 1 is less than or equal to 0.6 mm. Even if the thickness of the backplane 1 is thinned, since the reinforcing plate 14 is provided at the support plate 13, it can still play the role of enhancing the support strength and can also play the role of avoiding local depression.

[0096] In the above embodiments, the two solutions for improving the local depression of the support plate 13, whether the support plate 13 is bent or the reinforcing plate 14 is provided on the support plate 13, are both to thicken the support plate 13. By thickening the support plate 13, the strength of the support plate 13 is improved, and local depression is avoided when subjected to external force, thereby avoiding the problem of light leakage caused by the cracking of the tape 3.

[0097] In addition, to solve the problem that the strength of the force-bearing surface of the backplane 1 is insufficient and it tilts and collapses, the embodiments of the present application further provide a display device.

[0098] The structure of this display device is similar to that of the display device in the above embodiment, and the same parts will not be elaborated. The difference lies in the support plate 13.

[0099] In some embodiments, in combination with Figures 6 to 10 , the second end 13b of the support plate 13 is disposed opposite to the first end 13a. The support plate 13 is bent at least once between the first end 13a and the second end 13b to form one layer of the first support portion 131 and at least one layer of the second support portion 132, and the second support portion 132 abuts against the inner wall of the side plate 11 and is fixedly connected to the side plate 11.

[0100] In this way, the structure of the support plate 13 is strengthened at the first end 13a (that is, the root of the support plate 13), the strength of the connection between the support plate 13 and the side plate 11 is improved, and the problem that the support plate 13 tilts and collapses due to the small connection strength between the support plate 13 and the side plate 11 under external force is avoided.

[0101] Specifically, the second support portion 132 and the first support portion 131 may be disposed in a fitting manner or at an angle.

[0102] Exemplarily, as Figures 6 to 8 shown, in some embodiments of the present application, the bending angles of all the bending points formed between the first end 13a and the second end 13b of the support plate 13 are all 180°. That is to say, the formed second support portion 132 and the first support portion 131 are stacked, and each layer of the second support portion 132 is fixedly connected to the side plate 11. Among them Figure 6 the support plate 13 in Figure 7 is bent backward twice, Figure 8 the support plate 13 in Figures 6 to 7 is bent backward once,

[0103] Further, in some embodiments of the present application, the support plate 13 is bent backward between the first end 13a and the second end 13b to form the first support portion 131 and the second support portion 132 located between the first support portion 131 and the backplane body 10. The second support portion 132 is formed on the rear side surface of the first support portion 131. The first support portion 131 is parallel to the backplane body 10, and the second support portion 132 may be parallel to the first support portion 131 or may be disposed at an angle with respect to the first support portion 131.

[0104] Exemplarily, as Figures 9 to 10, the included angle α between the first support portion 131 and one layer of the second support portions 132 adjacent to the first support portion 131 satisfies 0° ≤ α ≤ 45°. Among them Figure 9 the support plate 13 in Figure 10 is bent backward multiple times,

[0105] the support plate 13 in

[0106] is bent backward once. When α increases, the strength of the support plate 13 increases. However, subject to requirements such as the assembly relationship and production process of the display device, through comprehensive mechanical calculations and verifications, it is required that α is not greater than 15°. When α is not greater than 15°, the optimal support strength and the thickness of the display panel 2 can be obtained. Figure 7 and 10 As shown, the support plate 13 is bent backward once between the first end 13a and the second end 13b to form one layer of the first support portion 131 and one layer of the second support portions 132, and the second end 13b of the support plate 13 is abutted and fixed against the inner wall of the side plate 11. As Figures 6 to 8 shown, the first support portion 131 can be arranged in parallel with the second support portions 132. Or, as Figure 9 and Figure 10 shown, the included angle between the second support portions 132 and the first support portion 131 is α, and the second end 13b of the support plate 13 is abutted and fixed against the inner wall of the side plate 11, which improves the connection strength at the root of the support plate 13 and prevents the support plate 13 from tilting and collapsing.

[0107] This backplane 1 is also an F-shaped backplane 1 formed by a stamping process.

[0108] In addition, as Figure 17 shown, the solution of arranging the reinforcing plate 14 on the support plate 13 can also solve the problem of the low strength of the support plate 13 and its tilting and collapsing.

[0109] Specifically, the reinforcing plate 14 is also arranged at the rear side of the support plate 13 and fixedly connected to the support plate 13, and the third end 14a of the reinforcing plate 14 extends to the inner wall of the side plate 11 and is fixedly connected to the inner wall of the side plate 11. By abutting and fixing the reinforcing plate 14 against the inner wall of the side plate 11, the connection strength between the overall support structure formed by the support plate 13 and the reinforcing plate 14 and the side plate 11 is improved. When subjected to external forces, the problem of the support plate 13 tilting and collapsing is avoided, and further the problems of cracking and light leakage of the tape 3 are avoided.

[0110] To ensure the overall strength of the support structure, it is required that the width of the reinforcing plate 14 is as close as possible to the width of the support plate 13. That is to say, the fourth end 14b of the reinforcing plate 14 is as close as possible to the side of the support plate 13 away from the side plate 11. The fourth end 14b of the reinforcing plate 14 is the end of the reinforcing plate 14 away from the side plate 11. The projection of the fourth end 14b of the reinforcing plate 14 on the backplane body 10 is the fourth side 142, and the projection of the third end 14a of the reinforcing plate 14 on the backplane body 10 is the third side 141. However, considering the assembly effect and use effect of the backlight assembly, in the preferred embodiment, the fourth end 14b of the reinforcing plate 14 does not protrude from the side of the support plate 13 away from the side plate 11, that is, the fourth section of the reinforcing plate 14 does not protrude from the second end 13b of the support plate 13.

[0111] Furthermore, at least part of the projection of the tape 3 on the backplane body 10 coincides with the projection of the reinforcing plate 14 on the backplane body 10. Taking the left side of the display device as an example, the fourth end 14b of the reinforcing plate 14 extends at least to a position flush with the left side of the tape 3. In this way, the support structure corresponding to the tape 3 is thickened, and thus the strength is improved. Even when subjected to an external force, the support plate 13 will not tilt and collapse completely. At least it is not easy to tilt and collapse between the third end 14a and the fourth end 14b of the reinforcing plate 14. Even if partial tilting occurs, it will not cause the tape 3 to completely fail, avoiding the problem of light leakage of the display device.

[0112] In some preferred embodiments, the projection of the tape 3 on the backplane body 10 is located within the projection of the reinforcing plate 14 on the backplane body 10. Taking the left side of the display device as an example, the second end 13b of the reinforcing plate 14 extends to a position flush with the right side of the tape 3, or extends to the right of the right side of the tape 3, so that the projection of the tape 3 on the backplane body 10 is completely located within the projection of the reinforcing plate 14 on the backplane body 10, not only strengthening the structure at the connection position of the support plate 13 and the side plate 11, but also strengthening the position where the tape 3 is arranged, avoiding the tilting and collapse of the support plate 13.

[0113] The wider the width of the reinforcing plate 14, the greater the degree of strengthening of the support plate 13, and the less likely the support plate 13 is to tilt and sink. When the third end 14a of the reinforcing plate 14 abuts and is fixed to the side plate 11, since the fourth end 14b of the reinforcing plate 14 does not protrude from the side of the support plate 13 away from the side plate 11, therefore, the closer the second end 13b of the reinforcing plate 14 is to being flush with the side of the support plate 13 away from the side plate 11, the greater the support strength. In the most preferred solution, the third end 14a of the reinforcing plate 14 abuts and is fixed to the side plate 11, and the fourth end 14b of the reinforcing plate 14 is flush with the side of the support plate 13 away from the side plate 11. That is to say, the width of the reinforcing plate 14 is the same as the width of the support plate 13.

[0114] In some embodiments of the present application, the reinforcing plate 14 and the support plate 13 are fixed together by welding.

[0115] In summary, in order to solve the problem that the force-bearing surface of the backplane 1 has insufficient force-bearing strength, resulting in depression or tilting and collapse of the force-bearing surface, and further resulting in cracking of the tape 3 or light leakage of the panel, the embodiments of the present application thicken the support plate 13. The thickening methods include bending the support plate 13 to form a first support portion 131 and a second support portion 132 arranged in a stacked manner, or providing a reinforcing plate 14 on the rear side surface of the support plate 13. To solve the problem of depression, it is only necessary to thicken the positions that are prone to depression during force application, especially the positions where the tape 3 is provided. That is to say, the second support portion 132 or the reinforcing plate 14 is provided at these positions. To solve the problem of tilting and collapse, the second support portion 132 or the reinforcing plate 14 needs to abut against the bottom wall of the side plate 11 and be fixedly connected to the inner wall of the side plate 11.

[0116] The embodiments of the present application strengthen the strength of the structure of the support plate 13 by bending the support plate 13 or providing a reinforcing plate 14 on the rear side surface of the support plate 13, which can avoid the problems of depression or tilting and collapse of the support plate 13 when subjected to external forces, and solve abnormal problems such as cracking of the tape 3 and light leakage of the panel caused by the depression or collapse of the support plate 13. Moreover, since the structure at the support plate 13 is strengthened to meet the force-bearing requirements, the overall thickness of the backplane 1 can be thinned. After the backplane 1 is thinned, due to the structural strengthening at the support plate 13, the support plate 13 can still provide a good support effect, which is more conducive to the ultra-thinning of the display device and reduces the production cost.

[0117] The above are only specific embodiments of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments described herein, but will conform to the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A display device, characterized in that, Comprising: A display panel (2) for displaying image information; A back plate (1), comprising: A back plate body (10) spaced from the display panel (2) at the rear side of the display panel (2); Side plates (11) formed by protruding forward from the edge of the back plate body (10); A support plate (13) disposed opposite to the back plate body (10), and a first end (13a) of the support plate (13) is connected to the inner wall of the side plate (11), and an adhesive tape (3) for fixing the display panel (2) is provided on a side surface of the support plate (13) facing away from the back plate body (10); Wherein, a second end (13b) of the support plate (13) is disposed opposite to the first end (13a), and the support plate (13) is bent forward or backward at least once between the first end (13a) and the second end (13b) to form a first support portion (131) and at least one second support portion (132) stacked with the first support portion (131); At least a part of the projection of the adhesive tape (3) on the back plate body (10) coincides with the projection of the second support portion (132) on the back plate body (10).

2. The display device according to claim 1, characterized in that, The bending angles of all the bending points formed between the first end (13a) and the second end (13b) of the support plate (13) are 180°.

3. The display device according to claim 2, wherein The width of the second support portion (132) is A1, the width of the adhesive tape (3) is C, and A1 ≥ C / 3.

4. The display device according to claim 2, characterized in that, The projection of the adhesive tape (3) on the back plate body (10) is located within the projection of the second support portion (132) on the back plate body (10).

5. The display device according to claim 4, characterized in that, The width of the second support portion (132) is smaller than the width of the first support portion (131).

6. The display device according to claim 3, wherein The minimum distance between the second support portion (132) and the side plate (11) is x, and 0 < x < C / 3.

7. The display device according to any one of claims 1 to 6, characterized in that, The material of the back plate (1) is galvanized steel sheet, and the thickness of the back plate (1) is less than or equal to 0.6 mm.

8. The display device according to claim 1, wherein The support plate (13) is bent backward between the first end (13a) and the second end (13b) to form the first support portion (131) and the second support portion (132) located between the first support portion (131) and the back plate body (10), and there is a gap between the second support portion (132) of the layer away from the first support portion (131) and the back plate body (10).

9. The display device according to claim 1, characterized in that, The side plate (11) is formed by bending the back plate body (10) forward, and the side plate (11) is bent inward twice to form a connecting plate (12) and the support plate (13), the connecting plate (12) fits against the inner wall of the side plate (11), and the support plate (13) is formed at one end of the connecting plate (12) close to the back plate body (10).

10. The display device according to claim 9, characterized in that, The angle of the first inward bend of the side plate (11) is 180°, and the angle of the second bend of the side plate (11) is 90°.

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