Liquid crystal display screen for protecting glass at step

Abstract

The utility model discloses a liquid crystal display screen for protecting glass at a step, which comprises a lower iron frame, a backlight rubber frame and a display module, the lower iron frame comprises a bottom plate and a side wall extending upwards from the edge of the bottom plate; the backlight rubber frame is arranged on the bottom plate; the display module comprises a lower polaroid, a lower substrate, an upper substrate and an upper polaroid which are sequentially stacked on the backlight rubber frame from bottom to top, the lower substrate is longer than the upper substrate and extends outwards to form a step, and a driving IC and an FPC are bound to the upper surface of the lower substrate located at the step. The height of the backlight rubber frame and the height of the side wall are between the height of the lower substrate and the height of the driving IC, and the upper surface of the driving IC, the upper surface of the FPC, the upper surface of the lower substrate, the upper surface of the backlight rubber frame, the outer side face of the side wall and the lower surface of the bottom plate which are located at the step are wound with protective paper. The protective paper wraps the glass at the step, the driving IC and the protective glue so as to protect the step glass.

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 protecting glass at a step. Background Art

[0002] For the TFT glass of the liquid crystal display screen, in order to meet the purpose of bonding the driving IC and the FPC, the lower substrate protrudes a part more than the upper substrate glass, so that the upper substrate and the lower substrate glass form a stepped structure. From the perspective of mechanics, the glass of the upper substrate and the lower substrate at the step part is very easy to deform due to external forces such as dropping, vibration or operation under pressure, resulting in glass breakage, thus causing the liquid crystal display screen to malfunction, increasing the defective rate of the liquid crystal display screen, and reducing the competitiveness of the product. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is how to protect the glass of the upper substrate and the lower substrate at the step, avoid deformation caused by external forces such as dropping, vibration or operation under pressure, resulting in glass breakage, thereby avoiding the malfunction of the liquid crystal display screen, reducing the defective rate of the liquid crystal display screen, and improving 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 protecting glass at a step, which includes a lower iron frame, a backlight glue frame and a display module. The lower iron frame includes a bottom plate and a side wall extending upward from the edge of the bottom plate; the backlight glue frame is arranged on the bottom plate; the display module includes a lower polarizer, a lower substrate, an upper substrate and an upper polarizer which are sequentially stacked from bottom to top on the backlight glue frame. The lower substrate is longer than the upper substrate and extends outwards to form a step. A driving IC and an FPC are bonded to the upper surface of the lower substrate at the step. The height of the backlight glue frame and the side wall is between the lower substrate and the driving IC. A protective paper is wound around the upper surface of the driving IC, the upper surface of the FPC, the upper surface of the lower substrate, the upper surface of the backlight glue frame, the outer side surface of the side wall and the lower surface of the bottom plate at the step.

[0006] As a preferred embodiment of the liquid crystal display screen for protecting glass at a step provided by the utility model, the material of the protective paper is an electromagnetic shielding material.

[0007] As a preferred embodiment of the liquid crystal display screen for protecting glass at a step provided by the utility model, the protective paper is aluminum foil.

[0008] As a preferred embodiment of the liquid crystal display screen for protecting the glass at the step provided by the present utility model, a PCB board is disposed on the lower surface of the bottom plate. At least one retaining wall is formed by stamping at the top and bottom of the lower surface of the bottom plate. The retaining wall is perpendicular to the bottom plate. At least one torsion foot is formed by stamping on the left and right sides of the lower surface of the bottom plate. The torsion foot is rotatable. The PCB board is placed in the space defined by the retaining wall and the torsion foot.

[0009] As a preferred embodiment of the liquid crystal display screen for protecting the glass at the step provided by the present utility model, the cross-sectional shape of the torsion foot is L-shaped. The torsion foot includes a root portion connected to the bottom plate and a torsion portion connected to the root portion.

[0010] As a preferred embodiment of the liquid crystal display screen for protecting the glass at the step provided by the present utility model, the width of the root portion of the torsion foot is 4 mm to 6 mm.

[0011] As a preferred embodiment of the liquid crystal display screen for protecting the glass at the step provided by the present utility model, the width of the torsion portion of the torsion foot is 4 mm to 6 mm.

[0012] As a preferred embodiment of the liquid crystal display screen for protecting the glass at the step provided by the present utility model, a concave portion is formed at the connection of the inner sides of the root portion and the torsion portion.

[0013] As a preferred embodiment of the liquid crystal display screen for protecting the glass at the step provided by the present utility model, the concave portion has a smooth transition.

[0014] As a preferred embodiment of the liquid crystal display screen for protecting the glass at the step provided by the present utility model, the distance from the deepest point of the concave portion to the lower surface of the root portion is 1.5 mm to 2.5 mm.

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

[0016] Since the height of the backlight rubber holder and the side wall is between the lower substrate and the driving IC, it can avoid interference with the winding of the protective paper, so that the protective paper is closely attached to the driving IC and the FPC. The protective paper wraps the lower substrate, the driving IC and the protective glue at the step to protect the lower substrate glass at the step, and avoid the glass from being broken due to deformation caused by external forces such as dropping, vibration or operation under pressure, thereby avoiding the failure of the liquid crystal display screen function, reducing the defective rate of the liquid crystal display screen, and improving the competitiveness of the product. Description of the Drawings

[0017] To more clearly illustrate the solutions in this application, the following provides a brief introduction to the drawings required for the description of the embodiments. Obviously, the drawings in the following description are some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 Schematic structural diagram of a liquid crystal display screen for protecting the glass at the step provided by the present utility model.

[0019] Figure 2 Side view of a liquid crystal display screen for protecting the glass at the step provided by the present utility model.

[0020] Figure 3 For Figure 1 Top view.

[0021] Figure 4 For Figure 1 Bottom view.

[0022] Figure 5 Schematic structural diagram of the improved structure at the lower iron frame.

[0023] Figure 6 For Figure 5 Bottom view.

[0024] Figure 7 For Figure 6 Schematic structural diagram after assembling the PCB board.

[0025] Figure 8 For Figure 5 Enlarged view of part A.

[0026] Explanation of the reference numerals in the drawings:

[0027] Lower iron frame 1; backlight rubber holder 2; display module 3; bottom plate 11; side wall 12; lower polarizer 31; lower substrate 32; upper substrate 33; upper polarizer 34; driving IC 35; FPC 36; protective paper 4;

[0028] PCB board 5; retaining wall 13; twisted foot 14; root part 141; twisted part 142; concave part 143. Detailed implementation manners

[0029] To enable those skilled in the art to better understand the solution of the present utility model, the following will clearly and completely describe the technical solution in the embodiments of the present utility model 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative work 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 terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship 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, and thus 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 should not be construed 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 defined.

[0032] The present utility model provides a liquid crystal display screen for protecting glass at a step, which includes a lower iron frame, a backlight glue holder and a display module. The lower iron frame includes a bottom plate and a side wall extending upward from the edge of the bottom plate; the backlight glue holder is arranged on the bottom plate; the display module includes a lower polarizer, a lower substrate, an upper substrate and an upper polarizer which are sequentially stacked from bottom to top on the backlight glue holder. The lower substrate is longer than the upper substrate and extends outward to form a step. A driving IC and an FPC are bonded to the upper surface of the lower substrate at the step. The height of the backlight glue holder and the side wall is between the lower substrate and the driving IC. A protective paper is wound around the upper surface of the driving IC, the upper surface of the FPC, the upper surface of the lower substrate, the upper surface of the backlight glue holder, the outer side surface of the side wall and the lower surface of the bottom plate at the step.

[0033] Since the height of the backlight adhesive holder and the side wall is between the lower substrate and the driving IC, it can avoid interference with the winding of the protective paper, enabling the protective paper to closely adhere to the driving IC and the FPC. The protective paper wraps the lower substrate, the driving IC, and the protective adhesive at the step to protect the glass of the lower substrate at the step, preventing the glass from cracking due to deformation caused by external forces such as dropping, vibration, or pressure during operation, thereby avoiding the failure of the liquid crystal display function, reducing the defect rate of the liquid crystal display, and enhancing the competitiveness of the product.

[0034] To enable those skilled in the art to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. The following describes the present invention in detail with reference to 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 invention and should not be construed as a limitation to the present invention.

[0035] Example 1, please refer to Figures 1 to 4 , a liquid crystal display for protecting the glass at the step provided by the present invention, which includes a lower iron frame 1, a backlight adhesive holder 2, and a display module 3. The lower iron frame 1 includes a bottom plate 11 and side walls 12 extending upward from the edge of the bottom plate 11. The backlight adhesive holder 2 is disposed on the bottom plate 11. The display module 3 includes a lower polarizer 31, a lower substrate 32, an upper substrate 33, and an upper polarizer 34 sequentially stacked on the backlight adhesive holder 2 from bottom to top. The lower substrate 32 is longer than the upper substrate 33 and extends outward to form a step. A driving IC 35 and an FPC 36 are bonded to the upper surface of the lower substrate 32 at the step. The height of the backlight adhesive holder 2 and the side walls 12 is between the lower substrate 32 and the driving IC 35. A protective paper 4 is wound around the upper surface of the driving IC 35, the upper surface of the FPC 36, the upper surface of the lower substrate 32, the upper surface of the backlight adhesive holder 2, the outer side surface of the side walls 12, and the lower surface of the bottom plate 11 at the step. Since the height of the backlight adhesive holder 2 and the side walls 12 is between the lower substrate 32 and the driving IC 35, it can avoid interference with the winding of the protective paper 4, enabling the protective paper 4 to closely adhere to the driving IC 35 and the FPC 36. The protective paper 4 wraps the lower substrate 32, the driving IC 35, and the protective adhesive at the step to protect the glass of the lower substrate 32 at the step, preventing the glass from cracking due to deformation caused by external forces such as dropping, vibration, or pressure during operation, thereby avoiding the failure of the liquid crystal display function, reducing the defect rate of the liquid crystal display, and enhancing the competitiveness of the product.

[0036] Furthermore, the material of the protective paper 4 is an electromagnetic shielding material. In this embodiment, the protective paper 4 is an aluminum foil, which can play an electromagnetic shielding role and reduce the interference of the driving IC 35 by electromagnetic waves.

[0037] Embodiment 2, please refer to Figures 5 to 8 , as a further optimized solution of Embodiment 1, in this embodiment, a PCB board 5 is arranged on the lower surface of the bottom plate 11. At least one retaining wall 13 is stamped on the top and bottom of the lower surface of the bottom plate 11. The retaining wall 13 is perpendicular to the bottom plate 11. At least one torsion foot 14 is stamped on the left and right sides of the lower surface of the bottom plate 11. In this embodiment, there are four retaining walls 13, and two retaining walls 13 are arranged on the top and bottom of the bottom plate 11 respectively. There are four torsion feet 14, and two torsion feet 14 are arranged on the left and right sides of the bottom plate 11 respectively. In other embodiments, the number and position requirements of the torsion feet 14 only need to be evenly distributed to achieve the limiting and fixing effects. The torsion feet 14 can rotate, and the PCB board 5 is placed in the space defined by the retaining walls 13 and the torsion feet 14. Since at least one retaining wall 13 is stamped on the top and bottom of the lower surface of the bottom plate 11, and at least one torsion foot 14 is stamped on the left and right sides of the lower surface of the bottom plate 11, the torsion feet 14 and the retaining walls 13 are arranged on the bottom plate 11 by means of die stamping. The PCB board 5 is limited by the retaining walls 13, and the PCB board 5 is fixed by rotating the torsion feet 14. 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.

[0038] Furthermore, the width of the retaining wall 13 is 8 mm to 12 mm. The assembly gap between the retaining wall 13 and the PCB board 5 is 0.3 mm to 0.5 mm. The height of the retaining wall 13 is the same as the thickness of the PCB board 5.

[0039] Furthermore, in order to enable the torsion feet 14 to best match the PCB board 5 and be bent and fixed, the cross-sectional shape of the torsion feet 14 is L-shaped. The torsion feet 14 include a root portion 141 and a torsion portion 142. The root portion 141 is connected to the bottom plate 11, and the torsion portion 142 is connected to the root portion 141.

[0040] Furthermore, the width of the root portion 141 of the torsion feet 14 is 4 mm to 6 mm to ensure that the root portion 141 has sufficient strength.

[0041] Furthermore, the width of the torsion portion 142 of the torsion feet 14 is 4 mm to 6 mm to ensure that the torsion feet 14 have sufficient length to press on the PCB board 5 after being bent. The assembly gap between the torsion portion 142 and the PCB board 5 is 0.3 mm to 0.5 mm.

[0042] Furthermore, an inner concave portion 143 is formed at the connection between the inner sides of the root portion 141 and the torsion portion 142. The inner concave portion 143 has a smooth transition to avoid stress concentration.

[0043] Furthermore, the depth of the concave portion 143 is 0.5 mm to 1.0 mm, and the distance between the deepest point of the concave portion 143 and the lower surface of the root portion 141 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 twisting, which is likely to cause the breakage of the twisted leg 14. The assembly gap between the twisted leg 14 and the PCB board 5 is 0.3 mm to 0.5 mm.

[0044] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation" and the like 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 it may be the communication inside 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.

[0045] Obviously, the embodiments described above are only a part of the embodiments of the present application, rather than all of the embodiments. The drawings show the preferred embodiments of the present application, 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 on some of the technical features. Any equivalent structure directly or indirectly using the content of the specification and drawings of the present application in other related technical fields is equally within the scope of the patent protection of the present application.

Claims

1. A liquid crystal display for protecting glass at a step, characterized in that, It includes: A lower iron frame, which includes a bottom plate and side walls extending upward from the edges of the bottom plate; A backlight glue holder, which is arranged on the bottom plate; A display module, which includes a lower polarizer, a lower substrate, an upper substrate, and an upper polarizer that are sequentially stacked from bottom to top on the backlight glue holder. The lower substrate is longer than the upper substrate and extends outward to form a step. A driving IC and an FPC are bonded to the upper surface of the lower substrate at the step. The height of the backlight glue holder and the side walls is between the lower substrate and the driving IC. The upper surface of the driving IC, the upper surface of the FPC, the upper surface of the lower substrate, the upper surface of the backlight glue holder, the outer side surface of the side wall, and the lower surface of the bottom plate at the step are wound with protective paper.

2. The liquid crystal display screen for protecting glass at a step according to claim 1, wherein The material of the protective paper is an electromagnetic shielding material.

3. The liquid crystal display screen for protecting the glass at the step according to claim 2, wherein The protective paper is aluminum foil.

4. The liquid crystal display screen for protecting the glass at the step according to claim 1, characterized in that, A PCB board is arranged on the lower surface of the bottom plate. At least one retaining wall is stamped and formed at the top and bottom of the lower surface of the bottom plate. The retaining wall is perpendicular to the bottom plate. At least one torsion foot is stamped and formed on the left and right sides of the lower surface of the bottom plate. The torsion foot is rotatable. The PCB board is placed in the space defined by the retaining wall and the torsion foot.

5. The liquid crystal display screen for protecting the glass at the step according to claim 4, characterized in that, The cross-sectional shape of the torsion foot is L-shaped. The torsion foot includes a root connected to the bottom plate and a torsion part connected to the root.

6. The liquid crystal display screen for protecting the glass at the step according to claim 5, characterized in that, The width of the root of the torsion foot is 4 mm to 6 mm.

7. The liquid crystal display screen for protecting the glass at the step according to claim 5, wherein, The width of the torsion part of the torsion foot is 4 mm to 6 mm.

8. The liquid crystal display screen for protecting the glass at the step according to claim 5, characterized in that A concave portion is provided at the connection between the root and the inner side of the torsion part.

9. The liquid crystal display screen for protecting the glass at the step according to claim 8, characterized in that, The concave portion has a smooth transition.

10. The liquid crystal display screen for protecting the glass at the step according to claim 8, characterized in that, The distance from the deepest point of the concave portion to the lower surface of the root is 1.5 mm to 2.5 mm.

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