Liquid crystal display screen capable of improving assembly efficiency

Abstract

The utility model discloses a liquid crystal display screen capable of improving assembling efficiency, which comprises a lower frame, a reflector plate, a light guide plate, an optical film group and a thin film transistor (TFT) module, the lower frame comprises a square bottom plate and side walls, the side walls are formed by upwards extending the edge of each of the four sides of the square bottom plate, and the side walls are arranged on the side walls. An avoiding groove is downwards formed in the middle of the upper surface of each side wall; the reflector plate is arranged on the upper surface of the square bottom plate; the light guide plate is arranged above the reflector plate; the optical film group is arranged above the reflector plate; and the TFT module is arranged above the optical film group. The avoiding groove can save materials and enable the liquid crystal display screen to be lighter; according to the liquid crystal display screen, glass or other parts can be taken and placed from the empty spaces on the two sides of the liquid crystal display screen, the receding grooves are only formed in the middle portions of the side walls, the four corners of the side walls can be reserved, the TFT module can be accurately positioned and buckled, the assembling efficiency of the liquid crystal display screen is greatly improved, and materials are reduced.

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 with improved assembly efficiency. Background Art

[0002] The traditional lower frame is used to carry the backlight module and the TFT module. The lower frame usually includes a square bottom plate and side walls. The upper surface of the side wall is basically flush with the upper surface of the TFT module, which can effectively protect the backlight module and the display module. However, this structure is not conducive to the removal and placement of the components of the backlight module and the TFT module during assembly, which reduces the assembly efficiency of the liquid crystal display screen. In addition, the side wall uses more material, which is not conducive to the thinness of the product and the reduction of product cost. Utility Model Content

[0003] The technical problem to be solved by the utility model is how to improve the assembly efficiency of the liquid crystal display screen and reduce the material consumption, thereby making the product lighter and thinner and reducing the product cost.

[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 with improved assembly efficiency, which includes a lower frame, a reflective sheet, a light guide plate, an optical film group and a TFT module, the lower frame includes a square bottom plate and side walls, the side walls are formed by extending upward from the edges of each of the four sides of the square bottom plate, and a avoidance groove is opened downward in the middle of the upper surface of each side wall; the reflective sheet is arranged on the upper surface of the square bottom plate; the light guide plate is arranged above the reflective sheet; the optical film group is arranged above the reflective sheet; and the TFT module is arranged above the optical film group.

[0006] As a preferred implementation of the liquid crystal display screen with improved assembly efficiency provided by the utility model, the avoidance groove extends to the upper surface of the square bottom plate.

[0007] As a preferred implementation of the liquid crystal display screen with improved assembly efficiency provided by the utility model, an FPC is bound to the TFT module, the FPC extends outward, and the width of the avoidance groove of the side wall located at the FPC is greater than the width of the FPC.

[0008] As a preferred implementation of the liquid crystal display screen with improved assembly efficiency provided by the utility model, the width of the avoidance groove of the side wall located at the FPC is at least 20 mm larger than the width of the FPC.

[0009] As a preferred embodiment of the liquid crystal display screen with improved assembly efficiency provided by the utility model, at least two material grooves are provided on the square bottom plate, and the excess material of the square bottom plate between adjacent material grooves forms reinforcing ribs, and the square bottom plate located on the inner side of the side wall extends upward to form a bearing portion, the height of the bearing portion is lower than the height of the side wall, and the light guide plate is arranged on the bearing portion.

[0010] As a preferred implementation of the liquid crystal display screen with improved assembly efficiency provided by the utility model, the edge of the bearing portion is chamfered.

[0011] As a preferred implementation of the liquid crystal display screen with improved assembly efficiency provided by the utility model, the chamfer is a right angle.

[0012] As a preferred implementation of the liquid crystal display screen with improved assembly efficiency provided by the utility model, the chamfer is a rounded corner.

[0013] As a preferred implementation of the liquid crystal display screen with improved assembly efficiency provided by the utility model, the shape of the material cutting groove is polygonal.

[0014] As a preferred implementation of the liquid crystal display screen with improved assembly efficiency provided by the utility model, the shape of the material cutting groove is hexagonal.

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

[0016] Since an avoidance groove is opened downward in the middle of the upper surface of each side wall, the avoidance groove can save materials and make the LCD screen lighter; and it is convenient for the staff's fingers to take and place glass or other components from the empty spaces on both sides during assembly. Since the avoidance groove is only set in the middle part of the side wall, the four corners of the side wall can be retained, so that the position of the TFT module can be accurately located and snapped, which greatly improves the assembly efficiency of the LCD screen and reduces the material consumption, improves the lightness and thinness of the product and reduces the product cost. 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 schematic structural diagram of a liquid crystal display screen for improving assembly efficiency.

[0019] Figure 2 for Figure 1Top view of the .

[0020] Figure 3 for Figure 1 Schematic diagram of the structure of the lower middle frame.

[0021] Figure 4 Schematic diagram of the improved structure of the lower frame.

[0022] Description of Figure Numbers:

[0023] Lower frame 1; reflector 2; light guide plate 3; optical film group 4; TFT module 5; square bottom plate 11; side wall 12; avoidance groove 13; FPC 6;

[0024] The material cutting groove 14; the reinforcing rib 15; and the bearing portion 16. DETAILED DESCRIPTION

[0025] 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.

[0026] 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.

[0027] 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.

[0028] The utility model provides a liquid crystal display screen with improved assembly efficiency, which includes a lower frame, a reflective sheet, a light guide plate, an optical film group and a TFT module, wherein the lower frame includes a square bottom plate and side walls, the side walls are formed by the edges of each of the four sides of the square bottom plate extending upward, and a avoidance groove is opened downward in the middle of the upper surface of each side wall; the reflective sheet is arranged on the upper surface of the square bottom plate; the light guide plate is arranged above the reflective sheet; the optical film group is arranged above the reflective sheet; and the TFT module is arranged above the optical film group.

[0029] Since an avoidance groove is opened downward in the middle of the upper surface of each side wall, the avoidance groove can save materials and make the LCD screen lighter; and it is convenient for the staff's fingers to take and place glass or other components from the empty spaces on both sides during assembly. Since the avoidance groove is only set in the middle part of the side wall, the four corners of the side wall can be retained, so that the position of the TFT module can be accurately located and snapped, which greatly improves the assembly efficiency of the LCD screen and reduces the material consumption, improves the lightness and thinness of the product and reduces the product cost.

[0030] 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.

[0031] See also Figures 1 to 3, a liquid crystal display screen with improved assembly efficiency provided by the utility model, comprising a lower frame 1, a reflective sheet 2, a light guide plate 3, an optical film group 4 and a TFT module 5, the lower frame 1 comprising a square bottom plate 11 and a side wall 12, the side wall 12 is formed by the edge of each of the four sides of the square bottom plate 11 extending upward, that is, there are four side walls 12, and a avoidance groove 13 is opened downward in the middle of the upper surface of each side wall 12; the reflective sheet 2 is arranged on the upper surface of the square bottom plate 11; the light guide plate 3 is arranged above the reflective sheet 2; the optical film group 4 is arranged above the reflective sheet 2; and the TFT module 5 is arranged above the optical film group 4. Since an avoidance groove 13 is provided downwardly in the middle of the upper surface of each side wall 12, the avoidance groove 13 can save materials and make the LCD screen lighter; and it is convenient for the staff to take and place the glass or other parts from the gaps on both sides during assembly. Since the avoidance groove 13 is only provided in the middle of the side wall 12, the four corners of the side wall 12 can be retained, so that the position of the TFT module 5 can be accurately positioned and snapped, which greatly improves the assembly efficiency of the LCD screen and reduces the material consumption, thereby improving the lightness and thinness of the product and reducing the product cost.

[0032] Furthermore, the avoidance groove 13 extends to the upper surface of the square bottom plate 11, so that the reflective sheet 2, the light guide plate 3 and the optical film group 4 can also be easily assembled, thereby improving the assembly efficiency.

[0033] Furthermore, the TFT module 5 is bound with an FPC 6 , which extends outwards. The width of the avoidance groove 13 of the side wall 12 located at the FPC 6 is greater than the width of the FPC 6 to avoid interference between the FPC 6 and the side wall 12 .

[0034] Furthermore, the width of the avoidance groove 13 of the side wall 12 located at the FPC 6 is at least 20 mm greater than the width of the FPC 6 , so as to leave enough space for the FPC 6 .

[0035] See also Figure 4As a further optimization scheme of Example 1, in this embodiment, at least two cutting grooves 14 are opened downward on the upper surface of the square bottom plate 11, and the excess material of the square bottom plate 11 between adjacent cutting grooves 14 forms reinforcing ribs 15. The square bottom plate 11 located on the inner side of the side wall 12 extends upward to form a bearing portion 16. The bearing portion 16 is perpendicular to the square bottom plate 11, and the height of the bearing portion 16 is lower than the height of the side wall 12; the light guide plate 3 is arranged on the bearing portion 16. Reinforcing ribs 15 are formed between the material removal grooves 14, which can not only prevent injection molding shrinkage and reduce material, but also enhance the strength of the lower frame 1. Since a bearing portion 16 is also provided on the square bottom plate 11, and the light guide plate 3 is supported by the bearing portion 16, and since the bearing portion 16 is formed by extending upward from the square bottom plate 11, its height is higher than the height of the square bottom plate 11 and the reinforcing ribs 15, the light guide plate 3 is no longer in direct contact with the reinforcing ribs 15, thereby preventing the burrs on the reinforcing ribs 15 from scratching the light guide plate 3. When the lower frame 1 is slightly deformed, its higher height can also prevent the reinforcing ribs 15 from squeezing the light guide plate 3, thereby preventing the light guide plate 3 from being damaged. The backlight module provided by the utility model can make the material removal grooves 14 arranged on the inner surface of the lower frame 1, which can make the backlight module more beautiful; it can also prevent injection molding shrinkage, reduce material and enhance the strength of the lower frame 1, and at the same time prevent the reinforcing ribs 15 from damaging the light guide plate 3, thereby avoiding damage to the light guide plate 3.

[0036] Furthermore, the edge of the bearing portion 16 is chamfered, which may be a right angle or a rounded corner. The right angle and the rounded corner can remove burrs to prevent the burrs of the bearing portion 16 from scratching the light guide plate 3 .

[0037] Further, the shape of the material cutting groove 14 is a polygon. More preferably, the shape of the material cutting groove 14 is a regular hexagon, which has better strength than the conventional rectangular lower frame 1.

[0038] Of course, the structure described in the utility model can also be applied to a backlight module in which one end of the light guide plate 3 is thin and the other end is thick. The square bottom plate 11 of the lower frame 1 can be inclined, and the supporting portion 16 extending upward from the square bottom plate 11 also has an inclined surface with the same slope as the square bottom plate 11. A material groove 14 is further provided on the square bottom plate 11, which can still prevent the reinforcing ribs 15 formed by the material groove 14 from damaging the light guide plate 3, and it should also fall within the protection scope of the utility model.

[0039] 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.

[0040] 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 with improved assembly efficiency, characterized in that: It includes a lower frame, a reflective sheet, a light guide plate, an optical film group and a TFT module. The lower frame includes a square bottom plate and side walls. The side walls are formed by the edges of each of the four sides of the square bottom plate extending upward. The middle of the upper surface of each side wall is provided with an escape groove downward. The reflective sheet is arranged on the upper surface of the square bottom plate. The light guide plate is arranged above the reflective sheet; the optical film group is arranged above the reflective sheet; and the TFT module is arranged above the optical film group.

2. The liquid crystal display screen with improved assembly efficiency according to claim 1, characterized in that: The avoidance groove extends to the upper surface of the square bottom plate.

3. The liquid crystal display screen with improved assembly efficiency according to claim 1, characterized in that: The TFT module is bound with an FPC, the FPC extends outward, and the width of the avoidance groove of the side wall located at the FPC is greater than the width of the FPC.

4. The liquid crystal display screen with improved assembly efficiency according to claim 3, characterized in that: The width of the avoidance groove of the side wall located at the FPC is at least 20 mm greater than the width of the FPC.

5. The liquid crystal display screen with improved assembly efficiency according to claim 1, characterized in that: At least two cutting grooves are provided on the square bottom plate, and the excess material of the square bottom plate between adjacent cutting grooves forms reinforcing ribs. The square bottom plate located on the inner side of the side wall extends upward to form a bearing portion, and the height of the bearing portion is lower than the height of the side wall. The light guide plate is arranged on the bearing portion.

6. The liquid crystal display screen with improved assembly efficiency according to claim 5, characterized in that: The edge of the bearing portion is chamfered.

7. The liquid crystal display screen with improved assembly efficiency according to claim 6, characterized in that: The chamfer is a right angle.

8. The liquid crystal display screen with improved assembly efficiency according to claim 6, characterized in that: The chamfer is a rounded corner.

9. The liquid crystal display screen with improved assembly efficiency according to claim 5, characterized in that: The shape of the cutting groove is polygonal.

10. The liquid crystal display screen with improved assembly efficiency according to claim 9, characterized in that: The shape of the cutting slot is hexagonal.

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