Liquid crystal display screen capable of preventing interference between upper iron frame and backlight rubber frame wall

Abstract

The utility model discloses a liquid crystal display screen capable of preventing an upper iron frame from interfering with a backlight rubber frame wall, which comprises a rubber frame, a lower iron frame and the upper iron frame, and the lower iron frame is arranged below the rubber frame; the upper iron frame is arranged above the rubber frame, the upper iron frame and the lower iron frame are fixed to the rubber frame in a buckled mode, the upper iron frame comprises a top plate and a side wall formed by bending the edge of the top plate outwards, and a bent arc is formed at the bent position between the top plate and the side wall. A fillet is arranged at the vertex of the rubber frame at the bent arc, and the radius of the fillet is greater than the radius of the inner circle of the bent arc. Due to the fact that the fillet is arranged at the vertex of the rubber frame at the bent arc, and the radius of the fillet is larger than the radius of the inner circle of the bent arc, interference between the bent arc of the upper iron frame and the frame wall of the backlight rubber frame can be avoided during assembling and buckling, the upper iron frame and the backlight rubber frame can be buckled easily, the situation that the upper iron frame and the backlight rubber frame cannot be buckled is avoided, and therefore the assembling efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid crystal display, and more specifically, to a liquid crystal display screen for preventing interference between an upper iron frame and a backlight rubber frame wall. Background Technique

[0002] The upper iron frame of a liquid crystal display screen is usually buckled together with the buckle of the backlight rubber frame through a buckle position. Since the frame wall of the upper iron frame is formed by a 90-degree flanging, a bending arc will be formed at the bending part after flanging, while the backlight rubber frame wall is in a right-angle state. Due to certain dimensional tolerances of each component, there is a risk of interference between the bending arc of the upper iron frame and the backlight rubber frame wall during assembly and buckling, resulting in difficult buckling. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is how to avoid the interference between the bending arc of the upper iron frame and the backlight rubber frame wall, avoid the situation of unable to buckle, and improve the competitiveness of the product.

[0004] The technical problem to be solved by the utility model is realized through the following technical solutions:

[0005] To solve the above technical problem, the utility model provides a liquid crystal display screen for preventing interference between an upper iron frame and a backlight rubber frame wall, which includes a rubber frame, a lower iron frame and an upper iron frame. The lower iron frame is arranged below the rubber frame; the upper iron frame is arranged above the rubber frame, and the upper iron frame and the lower iron frame are buckled and fixed with the rubber frame. The upper iron frame includes a top plate and a side wall formed by bending outwards from the edge of the top plate. A bending arc is formed at the bending part between the top plate and the side wall. A fillet is arranged at the vertex of the rubber frame located at the bending arc, and the radius of the fillet is greater than the inner radius of the bending arc.

[0006] As a preferred embodiment of the liquid crystal display screen for preventing interference between an upper iron frame and a backlight rubber frame wall provided by the utility model, buffer foam is arranged at the bending arc and the side wall.

[0007] As a preferred embodiment of the liquid crystal display screen for preventing interference between an upper iron frame and a backlight rubber frame wall provided by the utility model, the length of the buffer foam is between 5 times and 10 times the inner radius of the bending arc.

[0008] As a preferred embodiment of the liquid crystal display screen for preventing interference between an upper iron frame and a backlight rubber frame wall provided by the utility model, the contact surfaces of the buffer foam with the side wall and the rubber frame are both sticky.

[0009] As a preferred embodiment of the liquid crystal display provided by the present utility model for preventing interference between the upper iron frame and the backlight glue frame wall, a PCB board is arranged below the lower iron frame. At least one retaining wall is formed by stamping on the top and bottom of the lower surface of the lower iron frame. The retaining wall is perpendicular to the lower iron frame. At least one twisting foot is formed by stamping on the left and right sides of the lower surface of the lower iron frame. The twisting foot is rotatable. The PCB board is placed in the space defined by the retaining wall and the twisting foot.

[0010] As a preferred embodiment of the liquid crystal display provided by the present utility model for preventing interference between the upper iron frame and the backlight glue frame wall, the width of the retaining wall is 8 mm to 12 mm.

[0011] As a preferred embodiment of the liquid crystal display provided by the present utility model for preventing interference between the upper iron frame and the backlight glue frame wall, the assembly gap between the retaining wall and the PCB board is 0.3 mm to 0.5 mm.

[0012] As a preferred embodiment of the liquid crystal display provided by the present utility model for preventing interference between the upper iron frame and the backlight glue frame wall, the cross-sectional shape of the twisting foot is L-shaped. The twisting foot includes a root connected to the lower iron frame and a twisting part connected to the root.

[0013] As a preferred embodiment of the liquid crystal display provided by the present utility model for preventing interference between the upper iron frame and the backlight glue frame wall, a concave part is formed at the connection between the root and the inner side of the twisting part.

[0014] As a preferred embodiment of the liquid crystal display provided by the present utility model for preventing interference between the upper iron frame and the backlight glue frame wall, the concave part has a smooth transition.

[0015] The present utility model has the following beneficial effects:

[0016] Since a rounded corner is provided at the vertex of the glue frame at the bent arc, and the radius of the rounded corner is greater than the inner radius of the bent arc, interference between the bent arc of the upper iron frame and the backlight glue frame wall can be avoided during assembly and fastening. The upper iron frame and the backlight glue frame can be easily fastened, avoiding the situation where they cannot be fastened, thereby improving the assembly efficiency and the competitiveness of the product. Description of the Drawings

[0017] In order to more clearly illustrate the solutions in the present application, the following will briefly introduce the drawings required for use in the description of the embodiments. Obviously, the following drawings are some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

[0018] Figure 1Schematic diagram of the structure of a liquid crystal display screen for preventing interference between the upper iron frame and the backlight rubber frame wall provided by the present utility model.

[0019] Figure 2 For Figure 1 Schematic diagram of the structure of the upper iron frame in the middle.

[0020] Figure 3 For Figure 1 Improved structure schematic diagram of.

[0021] Figure 4 For Figure 1 Improved structure schematic diagram of the lower iron frame in the middle.

[0022] Figure 5 For Figure 4 Bottom view of.

[0023] Figure 6 For Figure 5 Schematic diagram of the structure after assembling the PCB board.

[0024] Figure 7 For Figure 4 Enlarged view of position A in the middle.

[0025] Explanation of the reference numerals in the attached drawings:

[0026] Rubber frame 1; lower iron frame 2; upper iron frame 3; top plate 31; side wall 32; bending arc 33; chamfer 11;

[0027] Buffer foam 4;

[0028] PCB board 5; retaining wall 21; twisted leg 22; root 221; twisted part 222; concave part 223. Specific implementation manner

[0029] In order to enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0030] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model 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, it should not be construed as a limitation to the present utility model.

[0031] In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0032] The present utility model provides a liquid crystal display screen for preventing interference between the upper iron frame and the backlight rubber frame wall, which includes a rubber frame, a lower iron frame and an upper iron frame. The lower iron frame is arranged below the rubber frame; the upper iron frame is arranged above the rubber frame. The upper iron frame and the lower iron frame are buckled and fixed with the rubber frame. The upper iron frame includes a top plate and side walls bent outward from the edge of the top plate. A bending arc is formed at the bending part between the top plate and the side walls. A chamfer is provided at the vertex of the rubber frame located at the bending arc, and the radius of the chamfer is greater than the inner radius of the bending arc.

[0033] Since a chamfer is provided at the vertex of the rubber frame at the bending arc, and the radius of the chamfer is greater than the inner radius of the bending arc, interference between the bending arc of the upper iron frame and the backlight rubber frame wall can be avoided during assembly and buckling. The upper iron frame and the backlight rubber frame can be easily buckled, avoiding the situation where they cannot be buckled, thereby improving the assembly efficiency and the competitiveness of the product.

[0034] In order to enable those skilled in the art to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings. The present utility model will be described in detail below in conjunction with the drawings and embodiments. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present utility model, but should not be construed as a limitation to the present utility model.

[0035] Example 1, please refer toFigure 1 and Figure 2 , a liquid crystal display provided by the present utility model for preventing interference between the upper iron frame and the backlight rubber frame wall, which includes a rubber frame 1, a lower iron frame 2 and an upper iron frame 3. The lower iron frame 2 is arranged below the rubber frame 1; the upper iron frame 3 is arranged above the rubber frame 1. The upper iron frame 3 and the lower iron frame 2 are fastened and fixed to the rubber frame 1. The upper iron frame 3 includes a top plate 31 and a side wall 32. The side wall 32 is formed by bending outward from the edge of the top plate 31. A bending arc 33 is formed at the bending place between the top plate 31 and the side wall 32. A chamfer 11 is arranged at the vertex of the rubber frame 1 located at the bending arc 33. The radius of the chamfer 11 is greater than the inner circle radius of the bending arc 33. Since the chamfer 11 is arranged at the vertex of the rubber frame 1 at the bending arc 33 and the radius of the chamfer 11 is greater than the inner circle radius of the bending arc 33, interference between the bending arc 33 of the upper iron frame 3 and the frame wall of the backlight rubber frame 1 can be avoided during assembly and fastening. The upper iron frame 3 and the backlight rubber frame 1 can be easily fastened, avoiding the situation of inability to fasten, thereby improving the assembly efficiency and the competitiveness of the product.

[0036] Please refer to Figure 3 , further, buffer foams 4 are arranged at the bending arc 33 and the side wall 32 to provide buffering between the rubber frame 1 and the upper iron frame 3, avoiding the upper iron frame 3 from damaging the rubber frame 1 and also facilitating the assembly of the rubber frame 1 and the upper iron frame 3 during assembly.

[0037] Further, the length of the buffer foam 4 is between 5 times and 10 times the inner circle radius of the bending arc 33 to protect the outer surface of the rubber frame 1 to the greatest extent and prevent the rubber frame 1 from being damaged by the upper iron frame 3.

[0038] Further, the contact surfaces of the buffer foam 4 with the side wall 32 and the rubber frame 1 are both sticky, that is, the left side and the right side of the buffer foam 4 are both sticky, and they are respectively pasted and fixed to the side wall 32 and the rubber frame 1 to avoid displacement or falling off of the buffer foam 4 and ensure that the rubber frame 1 can be protected by the buffer foam 4.

[0039] Embodiment 2, please refer to Figures 4 to 7, as a further optimized solution of Embodiment 1, in this embodiment, a PCB board 5 is arranged below the lower iron frame 2. At least one retaining wall 21 is stamped on the top and bottom of the lower surface of the lower iron frame 2. The retaining wall 21 is perpendicular to the lower iron frame 2. At least one torsion foot 22 is stamped on the left and right sides of the lower surface of the lower iron frame 2. In this embodiment, there are four retaining walls 21, and two retaining walls 21 are arranged on the top and bottom of the lower iron frame 2 respectively. There are four torsion feet 22, and two torsion feet 22 are arranged on the left and right sides of the lower iron frame 2 respectively. In other embodiments, the number and position requirements of the torsion feet 22 only need to be evenly distributed to achieve the limiting and fixing effects. The torsion feet 22 can rotate, and the PCB board 5 is placed in the space defined by the retaining walls 21 and the torsion feet 22. Since at least one retaining wall 21 is stamped on the top and bottom of the lower surface of the lower iron frame 2, and at least one torsion foot 22 is stamped on the left and right sides of the lower surface of the lower iron frame 2, the torsion feet 22 and the retaining walls 21 are arranged on the lower iron frame 2 by means of die stamping. The PCB board 5 is limited by the retaining walls 21, and the PCB board 5 is fixed by rotating the torsion feet 22. The assembly reliability of the PCB board 5 can be improved without affecting the cost, and the PCB board 5 can be prevented from falling off.

[0040] Further, the width of the retaining wall 21 is 8 mm to 12 mm. The assembly gap between the retaining wall 21 and the PCB board 5 is 0.3 mm to 0.5 mm. The height of the retaining wall 21 is the same as the thickness of the PCB board 5.

[0041] Further, in order to enable the torsion feet 22 to best match the PCB board 5 and perform bending and fixing, the cross-sectional shape of the torsion feet 22 is L-shaped. The torsion feet 22 include a root part 221 and a torsion part 222. The root part 221 is connected to the lower iron frame 2, and the torsion part 222 is connected to the root part 221.

[0042] Further, the width of the root part 221 of the torsion feet 22 is 4 mm to 6 mm to ensure that the root part 221 has sufficient strength.

[0043] Further, the width of the torsion part 222 of the torsion feet 22 is 4 mm to 6 mm to ensure that the torsion feet 22 have sufficient length to press on the PCB board 5 after bending. The assembly gap between the torsion part 222 and the PCB board 5 is 0.3 mm to 0.5 mm.

[0044] Further, an inner concave part 223 is formed at the connection between the inner sides of the root part 221 and the torsion part 222. The inner concave part 223 has a smooth transition to avoid stress concentration.

[0045] Furthermore, the depth of the concave portion 223 is 0.5 mm to 1.0 mm, and the distance between the deepest point of the concave portion 223 and the lower surface of the root portion 221 is 1.5 mm to 2.5 mm. This is to avoid the problem that the width at this position is too thin during bending and torsion, which is likely to cause the breakage of the twisted leg 22. The assembly gap between the twisted leg 22 and the PCB board 5 is 0.3 mm to 0.5 mm.

[0046] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "coupling", "fixation", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or communication with each other; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0047] Obviously, the embodiments described above are only a part of the embodiments of the present application, rather than all of the embodiments. The preferred embodiments of the present application are given in the drawings, but do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing specific embodiments, or perform equivalent replacements for some of the technical features. Any equivalent structure made by using the specification and drawings of the present application, directly or indirectly applied to other related technical fields, shall be within the scope of the patent protection of the present application by the same token.

Claims

1. A liquid crystal display for preventing interference between an upper iron frame and a backlight rubber frame wall, characterized in that It includes: A rubber frame; A lower iron frame, which is arranged below the rubber frame; An upper iron frame, which is arranged above the rubber frame. The upper iron frame and the lower iron frame are fastened and fixed to the rubber frame. The upper iron frame includes a top plate and side walls formed by bending outward from the edge of the top plate. A bending arc is formed at the bending part between the top plate and the side walls. At the vertex of the rubber frame located at the bending arc, a chamfer is provided, and the radius of the chamfer is greater than the inner radius of the bending arc.

2. The liquid crystal display for preventing interference between the upper iron frame and the backlight adhesive frame wall according to claim 1, wherein, Buffer foam is provided at the bending arc and the side walls.

3. The liquid crystal display screen for preventing interference between the upper iron frame and the backlight adhesive frame wall according to claim 2, wherein The length of the buffer foam is between 5 times and 10 times the inner radius of the bending arc.

4. The liquid crystal display screen for preventing interference between the upper iron frame and the backlight adhesive frame wall according to claim 2, characterized in that, The contact surfaces of the buffer foam with the side walls and the rubber frame are both sticky.

5. The liquid crystal display screen for preventing interference between the upper iron frame and the backlight adhesive frame wall according to claim 1, characterized in that, A PCB board is arranged below the lower iron frame. At least one retaining wall is stamped and formed at the top and bottom of the lower surface of the lower iron frame. The retaining wall is perpendicular to the lower iron frame. At least one twisting foot is stamped and formed on the left and right sides of the lower surface of the lower iron frame. The twisting foot is rotatable. The PCB board is placed in the space defined by the retaining wall and the twisting foot.

6. The liquid crystal display screen for preventing interference between the upper iron frame and the backlight rubber frame wall according to claim 5, characterized in that The width of the retaining wall is 8 mm to 12 mm.

7. The liquid crystal display screen for preventing interference between the upper iron frame and the backlight adhesive frame wall according to claim 5, wherein, The assembly gap between the retaining wall and the PCB board is 0.3 mm to 0.5 mm.

8. The liquid crystal display screen for preventing interference between the upper iron frame and the backlight glue frame wall according to claim 5, wherein The cross-sectional shape of the twisting foot is L-shaped. The twisting foot includes a root connected to the lower iron frame and a twisting part connected to the root.

9. The liquid crystal display screen for preventing interference between the upper iron frame and the backlight adhesive frame wall according to claim 8, wherein A concave part is provided at the connection between the root and the inner side of the twisting part.

10. The liquid crystal display screen for preventing interference between the upper iron frame and the backlight adhesive frame wall according to claim 9, wherein, The concave part has a smooth transition.

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