Liquid crystal display screen capable of preventing glass from being broken due to collision

Abstract

The utility model discloses a liquid crystal display screen capable of preventing glass from being broken due to collision, which comprises a backlight module, compressed foam and a display module, the backlight module comprises a lower frame, and the lower frame comprises a square bottom plate and four retaining walls extending upwards from the four edges of the bottom plate; the cross section of each compressed foam is in an L shape, the number of the compressed foams is four, and each compressed foam is arranged between every two adjacent retaining walls; the display module comprises a lower polaroid, a lower substrate, an upper substrate and an upper polaroid which are sequentially stacked 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 portion, located at the step, of the lower substrate. The display module is arranged on the backlight module and located in the space defined by the four blocking walls, and the four edges of the display module abut against the compressed foam.

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 capable of preventing glass from being broken by collision. Background Art

[0002] A traditional liquid crystal display screen usually includes a backlight module and a display module. A lower substrate and an upper substrate are arranged on the display module. The lower substrate and the upper substrate are generally glass substrates. The edges of the lower substrate and the upper substrate are relatively thin. When a violent collision occurs, the lower substrate and the upper substrate are easily collided with the retaining wall on the backlight module and cause the corners to break, thereby affecting the normal display of the liquid crystal display screen, increasing the number of defective liquid crystal display screens, and reducing the competitiveness of the product. Utility Model Content

[0003] The technical problem to be solved by the utility model is how to prevent the lower substrate and the upper substrate from colliding with the retaining wall on the backlight module and causing the corners to break when a violent collision occurs.

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

[0005] In order to solve the above technical problems, the utility model provides a liquid crystal display screen for preventing glass from collision and cracking, which includes a backlight module, compressed foam and a display module, the backlight module includes a lower frame, the lower frame includes a square bottom plate and four baffles extending upward from the four edges of the bottom plate; the cross-sectional shape of the compressed foam is L-shaped, there are four compressed foams, and each of the compressed foams is arranged between two adjacent baffles; the display module includes a lower polarizer, a lower substrate, an upper substrate and an upper polarizer stacked in sequence from bottom to top, the lower substrate is longer than the upper substrate and extends outward to form a step, the upper surface of the lower substrate located at the step is bound with a driver IC and an FPC, the display module is arranged on the backlight module and is located in the space enclosed by the four baffles, and the four sides of the display module are in contact with the compressed foam.

[0006] As a preferred implementation of the liquid crystal display screen for preventing glass from breaking due to collision provided by the utility model, the contact surface between the compressed foam and the retaining wall is sticky.

[0007] As a preferred embodiment of the liquid crystal display screen for preventing glass from collision and breakage provided by the utility model, both sides of the compressed foam are sticky, the contact surface between the compressed foam and the baffle wall is provided with strong viscosity glue, and the contact surface between the compressed foam and the display module is provided with weak viscosity glue.

[0008] As a preferred implementation of the liquid crystal display screen for preventing glass from breaking due to collision provided by the utility model, the initial adhesion ratio of the strong viscosity glue to the weak viscosity glue is 2:1 to 50:1.

[0009] As a preferred implementation of the liquid crystal display screen for preventing glass from collision and cracking provided by the utility model, the weak-viscosity glue and the strong-viscosity glue have the same viscosity, the glue coating shape of the weak-viscosity glue is a grid shape, and the glue coating shape of the strong-viscosity glue is a complete coating.

[0010] As a preferred implementation of the liquid crystal display screen for preventing glass from breaking due to collision provided by the utility model, a color coating is provided on the contact surface between the compressed foam and the retaining wall.

[0011] As a preferred embodiment of the liquid crystal display screen for preventing glass from breaking due to collision provided by the utility model, the FPC includes a substrate layer, a circuit layer arranged on the upper surface of the substrate layer, and a metal heat dissipation layer arranged on the lower surface of the substrate layer.

[0012] As a preferred embodiment of the liquid crystal display screen for preventing glass from breaking due to collision provided by the utility model, the FPC also includes at least one through-hole penetrating the substrate layer, the circuit layer and the metal heat dissipation layer, and the inner wall of the through-hole is provided with a thermal conductive layer in contact with the circuit layer and the metal heat dissipation layer.

[0013] As a preferred implementation of the liquid crystal display screen for preventing glass from breaking due to collision provided by the utility model, a heat conductor connected to an external heat conducting structure is arranged in the through hole, and the heat conductor is in contact with the heat conducting layer.

[0014] As a preferred implementation of the liquid crystal display screen for preventing glass from breaking due to collision provided by the utility model, the structure of the metal heat dissipation layer is a mesh structure, a strip structure, a wavy structure or a honeycomb structure.

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

[0016] Since compressed foam is arranged between two adjacent baffles, the four sides of the display module abut against the compressed foam. When the display module is subjected to a violent collision, the compressed foam between the baffle and the display module can play a good buffering role, thereby preventing the lower substrate and the upper substrate in the display module from directly colliding with the baffle, effectively protecting the lower substrate and the upper substrate, and avoiding cracks at the edges and corners, thereby ensuring the normal display of the liquid crystal display screen, reducing the number of defective liquid crystal display screens, and improving the competitiveness of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the scheme in the present application, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 The utility model provides a structural schematic diagram of a liquid crystal display screen for preventing glass from being broken by collision.

[0019] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0020] Figure 3 for Figure 1 Top view of the .

[0021] Figure 4 This is a schematic diagram of the structure of Example 2.

[0022] Figure 5 This is a schematic diagram of the structure of Example 3.

[0023] Description of Figure Numbers:

[0024] Backlight module 100; compressed foam 1; display module 200; lower frame 2; bottom plate 21; baffle 22; lower substrate 3; upper substrate 4; driver IC 5; FPC 6;

[0025] Strong adhesive glue 11; Weak adhesive glue 12;

[0026] Base material layer 61; circuit layer 62; metal heat dissipation layer 63; through hole 64. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", and "third" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0030] The utility model provides a liquid crystal display screen for preventing glass from being broken by collision, comprising a backlight module, compressed foam and a display module, wherein the backlight module comprises a lower frame, the lower frame comprises a square bottom plate and four baffles extending upward from the four edges of the bottom plate; the cross-sectional shape of the compressed foam is L-shaped, there are four compressed foams, and each of the compressed foams is arranged between two adjacent baffles; the display module comprises a lower polarizer, a lower substrate, an upper substrate and an upper polarizer which are sequentially stacked from bottom to top, the lower substrate is longer than the upper substrate and extends outward to form a step, a driving IC and an FPC are bound to the upper surface of the lower substrate located at the step, the display module is arranged on the backlight module and is located in a space enclosed by the four baffles, and the four sides of the display module are in contact with the compressed foam.

[0031] Since compressed foam is arranged between two adjacent baffles, the four sides of the display module abut against the compressed foam. When the display module is subjected to a violent collision, the compressed foam between the baffle and the display module can play a good buffering role, thereby preventing the lower substrate and the upper substrate in the display module from directly colliding with the baffle, effectively protecting the lower substrate and the upper substrate, and avoiding cracks at the edges and corners, thereby ensuring the normal display of the liquid crystal display screen, reducing the number of defective liquid crystal display screens, and improving the competitiveness of the product.

[0032] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings. The present invention is described in detail below in conjunction with the accompanying drawings and embodiments, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limitations on the present invention.

[0033] Example 1

[0034] See also Figures 1 to 3 , a liquid crystal display screen for preventing glass from being broken by collision provided by the utility model, comprising a backlight module 100, a compressed foam 1 and a display module 200, the backlight module 100 comprises a lower frame 2, a reflective sheet, a light guide plate and an optical film group which are sequentially stacked from bottom to top, the lower frame 2 comprises a square bottom plate 21 and four baffles 22, the four baffles 22 are formed by extending upward from the four edges of the bottom plate 21; the cross-sectional shape of the compressed foam 1 is L-shaped, there are four compressed foams 1, each compressed foam 1 is arranged between two adjacent baffles 2 2; the display module 200 includes a lower polarizer, a lower substrate 3, an upper substrate 4 and an upper polarizer which are stacked in sequence from bottom to top, the lower substrate 3 is longer than the upper substrate 4 and extends outward to form a step, the upper surface of the lower substrate 3 located at the step is bound with a driving IC 5 and an FPC 6, the display module 200 is arranged on the backlight module 100 and is located in a space enclosed by four retaining walls 22, the four sides of the display module 200 are in contact with the compressed foam 1, and in the present embodiment, the four sides of the lower substrate 3 and the upper substrate 4 are in contact with the compressed foam 1. Since the compressed foam 1 is arranged between two adjacent baffles 22, the four sides of the display module 200 are in contact with the compressed foam 1. When the display module 200 is subjected to a violent collision, the compressed foam 1 between the baffle 22 and the display module 200 can play a good buffering role, thereby preventing the lower substrate 3 and the upper substrate 4 in the display module 200 from directly colliding with the baffle 22, effectively protecting the lower substrate 3 and the upper substrate 4, and avoiding cracks at the corners, thereby ensuring the normal display of the liquid crystal display screen, reducing the number of defective liquid crystal display screens, and improving the competitiveness of the product.

[0035] Example 2

[0036] See also Figure 4 As a further optimization solution of Example 1, in this embodiment, the contact surface between the compressed foam 1 and the baffle wall 22 is sticky, so that the compressed foam 1 can be adhered and fixed to the inner surface of the baffle wall 22.

[0037] Furthermore, both sides of the compressed foam 1 are sticky, and the contact surface between the compressed foam 1 and the retaining wall 22 is provided with a strong-viscosity glue 11, and the contact surface between the compressed foam 1 and the display module 200 is provided with a weak-viscosity glue 12. The strong-viscosity glue 11 can firmly fix the compressed foam 1 and the retaining wall 22 together, while the weak-viscosity glue 12 has a weaker adhesive force, which facilitates the separation of the compressed foam 1 and the display module 200 while ensuring fixation, thereby improving the convenience of maintenance.

[0038] Furthermore, the initial adhesion ratio of the strong adhesive glue 11 to the weak adhesive glue 12 is 2:1 to 50:1. The purpose of controlling the adhesion of the strong adhesive glue 11 and the weak adhesive glue 12 is achieved by controlling the initial adhesion ratio of the strong adhesive glue 11 to the weak adhesive glue 12, thereby ensuring that the compressed foam 1 and the display module 200 can be easily peeled off.

[0039] Furthermore, the weak-viscosity glue 12 and the strong-viscosity glue 11 have the same viscosity, the weak-viscosity glue 12 is coated in a grid shape, and the strong-viscosity glue 11 is completely coated. Since the weak-viscosity glue 12 and the strong-viscosity glue 11 have the same viscosity, only one type of glue can be purchased, which increases the purchase quantity of glue, thereby reducing the purchase cost, and will not be confused during the glue coating process, thereby improving production efficiency and avoiding the problem of using the wrong glue. The coating shape of the weak-viscosity glue 12 is a grid shape, which is equivalent to reducing the glue area of ​​the weak-viscosity glue 12, thereby reducing the viscosity of the weak-viscosity glue 12.

[0040] Furthermore, the contact surface between the base compressed foam 1 and the baffle wall 22 is provided with a color coating, and the strong viscosity glue 11 is provided above the color coating. The color coating can better help the staff to identify which side is the weak viscosity glue 12 and which side is the strong viscosity glue 11, thereby playing a fool-proof role, and thus avoiding reversing the strong viscosity glue 11 and the weak viscosity glue 12 during assembly, thereby improving the assembly efficiency and reducing the generation of defective products.

[0041] Furthermore, the color of the color coating is red, which is more conspicuous and makes it easier for staff to identify.

[0042] Example 3

[0043] See also Figure 5As a further optimization scheme of Example 1, in this embodiment, the FPC6 includes a substrate layer 61, a circuit layer 62 arranged on the upper surface of the substrate layer 61, and a metal heat dissipation layer 63 arranged on the lower surface of the substrate layer 61. The arrangement method can be that the circuit layer 62 and the metal heat dissipation layer 63 are respectively attached to the substrate layer 61 by double-sided adhesive. Since the thickness of the substrate layer 61 is relatively thin, the heat on the FPC6 can be diffused to the metal heat dissipation layer 63 through the substrate layer 61. The metal heat dissipation layer 63 can effectively increase the heat dissipation area of ​​the FPC6 and play a role in uniform heat dissipation, thereby improving the heat dissipation efficiency of the FPC6. The substrate layer 61 can be any one of polyimide, polyester, polysulfone or polytetrafluoroethylene, the double-sided adhesive is any one of an acrylic adhesive layer or an epoxy resin adhesive layer, and the metal heat dissipation layer 63 can be a copper foil layer.

[0044] Furthermore, the FPC 6 also includes at least one through-hole 64 penetrating the substrate layer 61, the circuit layer 62 and the metal heat dissipation layer 63, and the inner wall of the through-hole 64 is provided with a heat-conducting layer in contact with the circuit layer 62 and the metal heat dissipation layer 63. By utilizing the good thermal conductivity of the through-hole 64, the circuit layer 62 and the metal heat dissipation layer 63 on both sides of the substrate layer 61 can be electrically connected to play a good thermal conductivity function, and the thermal conductive layer can provide a thermal conductive function to achieve a good heat dissipation effect. Among them, the thermal conductive layer can be a copper glue conductive ink layer.

[0045] Furthermore, a heat conductor connected to an external heat-conducting structure is disposed in the through hole 64. The heat conductor is connected to the external heat-conducting structure from one side of the circuit layer 62 and is also in contact with the heat-conducting layer in the through hole 64, so that the circuit layer 62 and the metal heat dissipation layer 63 can be connected to the external heat-conducting structure through the through hole 64, so that the heat in the FPC 6 can be diffused to the external heat-conducting structure through the heat conductor in the through hole 64, so as to further improve the heat dissipation efficiency of the FPC 6. Preferably, in order to enable the through hole 64 to be connected to the external heat-conducting structure, the through hole 64 is disposed at the edge of the FPC 6.

[0046] Furthermore, the metal heat dissipation layer 63 is a uniform heat dissipation structure, and its structure can be any one of a mesh structure, a strip structure, a wavy structure or a honeycomb structure. Through the uniform heat dissipation structure, the heat dissipation effect can be better improved.

[0047] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] Obviously, the embodiments described above are only some embodiments of the present application, rather than all embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they 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 disclosure of the present application more thorough and comprehensive. Although the present application is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to perform equivalent replacement of some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of this application, directly or indirectly used in other related technical fields, is similarly within the scope of patent protection of this application.

Claims

1. A liquid crystal display screen for preventing glass from breaking due to collision, characterized in that: It includes a backlight module, compressed foam and a display module. The backlight module includes a lower frame, which includes a square bottom plate and four baffles extending upward from the four edges of the bottom plate; the cross-sectional shape of the compressed foam is L-shaped, and there are four compressed foams, each of which is arranged between two adjacent baffles; the display module includes a lower polarizer, a lower substrate, an upper substrate and an upper polarizer which are stacked in sequence from bottom to top, the lower substrate is longer than the upper substrate and extends outward 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 display module is arranged on the backlight module and is located in the space enclosed by the four baffles, and the four sides of the display module are in contact with the compressed foam.

2. The liquid crystal display screen for preventing glass from breaking upon collision according to claim 1, characterized in that: The contact surface between the compressed foam and the retaining wall is sticky.

3. The liquid crystal display screen for preventing glass from breaking due to collision according to claim 2, characterized in that: Both sides of the compressed foam are sticky, the contact surface between the compressed foam and the retaining wall is provided with strong-viscosity glue, and the contact surface between the compressed foam and the display module is provided with weak-viscosity glue.

4. The liquid crystal display screen for preventing glass from being broken by collision according to claim 3, characterized in that: The initial adhesion ratio of the strong adhesive and the weak adhesive is 2:1 to 50:

1.

5. The liquid crystal display screen for preventing glass from being broken by collision according to claim 3, characterized in that: The weak-viscosity glue and the strong-viscosity glue have the same viscosity. The glue coating shape of the weak-viscosity glue is a grid shape, and the glue coating shape of the strong-viscosity glue is a complete coating.

6. The liquid crystal display screen for preventing glass from being broken by collision according to claim 3, characterized in that: The contact surface between the compressed foam and the baffle wall is provided with a color coating.

7. The liquid crystal display screen for preventing glass from breaking due to collision according to claim 1, characterized in that: The FPC includes a substrate layer, a circuit layer disposed on an upper surface of the substrate layer, and a metal heat dissipation layer disposed on a lower surface of the substrate layer.

8. The liquid crystal display screen for preventing glass from breaking due to collision according to claim 7, characterized in that: The FPC further includes at least one through-hole penetrating the substrate layer, the circuit layer and the metal heat dissipation layer, and an inner wall of the through-hole is provided with a heat-conducting layer in contact with the circuit layer and the metal heat dissipation layer.

9. The liquid crystal display screen for preventing glass from being broken by collision according to claim 8, characterized in that: A heat conductor connected to an external heat-conducting structure is arranged in the through hole, and the heat conductor is in contact with the heat-conducting layer.

10. The liquid crystal display screen for preventing glass from breaking due to collision according to claim 7, characterized in that: The structure of the metal heat dissipation layer is a mesh structure, a strip structure, a wave structure or a honeycomb structure.

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