Anti-static liquid crystal display screen

Abstract

The anti-static liquid crystal display screen 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, a driving IC (integrated circuit) and an FPC (flexible printed circuit) are bound on the upper surface of the lower substrate at the position of the step, and the driving IC is connected with the FPC. An ITO plating layer is arranged on the upper surface of the upper substrate, a left grounding wire and a right grounding wire are arranged on the upper surface of the lower substrate located at the step, and the left grounding wire and the right grounding wire are arranged on the two sides of the driving IC respectively. Left conductive silver paste and right conductive silver paste are arranged on the upper surface, close to the step, of the upper substrate and the side edge of the upper substrate, one end of the left conductive silver paste is electrically connected with the ITO plating layer, and the other end of the left conductive silver paste is electrically connected with the left grounding wire. And one end of the right conductive silver paste is electrically connected with the ITO plating layer.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid crystal display, and more specifically to an anti-static liquid crystal display screen. Background Art

[0002] The upper substrate of a normal TN screen with FPC is directly attached with a polarizer without an ITO coating. This structure is easily disturbed by static electricity during the display process, which causes static electricity to damage the inside of the LCD screen, causing poor display of the LCD screen, increasing the probability of poor display of the LCD screen, increasing the manufacturing cost of the LCD screen, and reducing the product competitiveness of the LCD screen. Utility Model Content

[0003] The technical problem to be solved by the utility model is how to prevent the liquid crystal display screen from being interfered by static electricity, avoid static electricity from damaging the inside of the liquid crystal display screen, prevent the liquid crystal display screen from displaying poorly, reduce the probability of poor display of the liquid crystal display screen, reduce the manufacturing cost of the liquid crystal display screen, and improve the product competitiveness of the liquid crystal display screen.

[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 an anti-static liquid crystal display screen, which includes 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, the upper surface of the lower substrate located at the step is bound with a driver IC and an FPC, the upper surface of the upper substrate is provided with an ITO coating, the upper surface of the lower substrate located at the step is provided with a left grounding trace and a right grounding trace, the left grounding trace and the right grounding trace are respectively arranged on both sides of the driver IC, the upper surface of the upper substrate near the step and the side of the upper substrate are provided with a left conductive silver paste and a right conductive silver paste, one end of the left conductive silver paste is electrically connected to the ITO coating, the other end of the left conductive silver paste is electrically connected to the left grounding trace, one end of the right conductive silver paste is electrically connected to the ITO coating, the other end of the right conductive silver paste is electrically connected to the right grounding trace, and the left grounding trace and the right grounding trace are both connected to the grounding point of the FPC.

[0006] As a preferred embodiment of the anti-static liquid crystal display screen provided by the utility model, the lower polarizer, the lower substrate, the upper substrate and the upper polarizer constitute a display module, a backlight module is arranged below the lower polarizer, and a surface iron frame is arranged above the upper polarizer, the surface iron frame includes a top plate and side walls extending downward from the edge of the top plate, the backlight module and the display module are arranged in a space enclosed by the top plate and the side walls, the side wall on the side close to the FPC is provided with a notch for avoiding the FPC, and the top plate located above the FPC and the driver IC is provided with a bending pressure bone formed by bending.

[0007] As a preferred implementation of the anti-static liquid crystal display screen provided by the utility model, the dimension of each side of the notch is 0.5 mm to 1 mm larger than the dimension of each side of the FPC.

[0008] As a preferred implementation of the anti-static liquid crystal display screen provided by the utility model, the width of the bent pressure bone is 1 mm to 2 mm.

[0009] As a preferred implementation of the anti-static liquid crystal display screen provided by the utility model, the length of the bent compression bone is more than 4 mm greater than the length of the notch.

[0010] As a preferred implementation of the anti-static liquid crystal display screen provided by the utility model, the distance between the lower surface of the bent pressure bone and the upper surfaces of the FPC and the driver IC is greater than 0.2 mm.

[0011] As a preferred implementation of the anti-static liquid crystal display screen provided by the utility model, a protective glue is provided on the upper surface of the lower substrate extending outward, and the protective glue covers the FPC and the driver IC located on the upper surface of the lower substrate.

[0012] As a preferred implementation of the anti-static liquid crystal display screen provided by the utility model, a protrusion is provided on the edge of the upper surface of the lower substrate extending outward.

[0013] As a preferred implementation of the anti-static liquid crystal display screen provided by the utility model, the upper surface of the protrusion is flush with the upper surface of the upper substrate.

[0014] As a preferred implementation of the anti-static liquid crystal display screen provided by the utility model, a buffer foam is arranged on the upper surface of the protective glue.

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

[0016] Since an ITO coating is provided on the upper surface of the upper substrate, the ITO coating is connected to the ground trace through the conductive silver paste on both sides, and then the static electricity on the ITO coating is conducted out through the grounding point of the FPC, thereby preventing static electricity from damaging the inside of the LCD screen, preventing the LCD screen from displaying poorly, reducing the probability of defective LCD screens, reducing the manufacturing cost of LCD screens, and improving the product competitiveness of LCD screens. 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 an anti-static liquid crystal display screen.

[0019] Figure 2 for Figure 1 Schematic diagram of the structure of the lower and middle substrates and the upper substrate.

[0020] Figure 3 This is a schematic diagram of the structure of Example 2.

[0021] Figure 4 for Figure 3 Schematic diagram of the structure of the middle surface iron frame.

[0022] Figure 5 for Figure 3 Schematic diagram of the improved structure.

[0023] Description of Figure Numbers:

[0024] Lower polarizer 1; lower substrate 2; upper substrate 3; upper polarizer 4; driver IC 5; FPC 6; ITO coating 7; left grounding trace 21; right grounding trace 22; left conductive silver paste 31; right conductive silver paste 32;

[0025] Display module 100 ; backlight module 200 ; surface iron frame 8 ; top plate 81 ; side wall 82 ; notch 83 ; bending pressure bone 84 ; protective glue 9 ; protrusion 23 ; buffer foam 10 . DETAILED DESCRIPTION

[0026] 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.

[0027] 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.

[0028] 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.

[0029] The utility model provides an anti-static liquid crystal display screen, which 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, an ITO coating is arranged on the upper surface of the upper substrate, a left grounding trace and a right grounding trace are arranged on the upper surface of the lower substrate located at the step, the left grounding trace and the right grounding trace are respectively arranged on both sides of the driving IC, a left conductive silver paste and a right conductive silver paste are arranged on the upper surface of the upper substrate near the step and the side edge of the upper substrate, one end of the left conductive silver paste is electrically connected to the ITO coating, the other end of the left conductive silver paste is electrically connected to the left grounding trace, one end of the right conductive silver paste is electrically connected to the ITO coating, the other end of the right conductive silver paste is electrically connected to the right grounding trace, and the left grounding trace and the right grounding trace are both connected to the grounding point of the FPC.

[0030] Since an ITO coating is provided on the upper surface of the upper substrate, the ITO coating is connected to the ground trace through the conductive silver paste on both sides, and then the static electricity on the ITO coating is conducted out through the grounding point of the FPC, thereby preventing static electricity from damaging the inside of the LCD screen, preventing the LCD screen from displaying poorly, reducing the probability of defective LCD screens, reducing the manufacturing cost of LCD screens, and improving the product competitiveness of LCD screens.

[0031] 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.

[0032] See also Figure 1 and Figure 2 , is an anti-static liquid crystal display provided by the utility model, which includes a lower polarizer 1, a lower substrate 2, an upper substrate 3 and an upper polarizer 4 which are sequentially stacked from bottom to top, the lower substrate 2 is longer than the upper substrate 3 and extends outward to form a step, the upper surface of the lower substrate 2 located at the step is bound with a driver IC 5 and an FPC 6, the upper surface of the upper substrate 3 is provided with an ITO coating 7, the upper surface of the lower substrate 2 located at the step is provided with a left grounding trace 21 and a right grounding trace 22, the left grounding trace 21 and the right grounding trace 22 are respectively arranged on both sides of the driver IC 5, close to the stage The upper surface of the upper substrate 3 at the step and the side of the upper substrate 3 are provided with a left conductive silver paste 31 and a right conductive silver paste 32, and the left conductive silver paste 31 and the right conductive silver paste 32 are also arranged on both sides of the driver IC 5, one end of the left conductive silver paste 31 is electrically connected to the ITO coating 7, the other end of the left conductive silver paste 31 is electrically connected to the left grounding trace 21, one end of the right conductive silver paste 32 is electrically connected to the ITO coating 7, and the other end of the right conductive silver paste 32 is electrically connected to the right grounding trace 22, and the left grounding trace 21 and the right grounding trace 22 are both connected to the grounding point of the FPC 6. Since the upper surface of the upper substrate 3 is provided with an ITO coating 7, the ITO coating 7 is connected to the grounding trace through the conductive silver paste on both sides, and then the static electricity on the ITO coating 7 is led out through the grounding point of the FPC 6, so as to avoid static electricity from damaging the inside of the liquid crystal display screen, prevent the liquid crystal display screen from displaying poorly, reduce the probability of poor performance of the liquid crystal display screen, reduce the manufacturing cost of the liquid crystal display screen, and improve the product competitiveness of the liquid crystal display screen.

[0033] See also Figures 3 to 5As a further optimization scheme of Example 1, in this embodiment, the lower polarizer 1, the lower substrate 2, the upper substrate 3 and the upper polarizer 4 constitute a display module 100, a backlight module 200 is arranged below the lower polarizer 1, and a surface iron frame 8 is arranged above the upper polarizer 4. The surface iron frame 8 includes a top plate 81 and a side wall 82 extending downward from the edge of the top plate 81. The backlight module 200 and the display module 100 are arranged in a space enclosed by the top plate 81 and the side wall 82. The side wall 82 on the side close to the FPC6 is provided with a notch 83 for avoiding the FPC6, and the top plate 81 located above the FPC6 and the driver IC5 is provided with a bending pressure bone 84 formed by bending. Since the side wall 82 on the side close to the FPC6 is provided with a notch 83 for avoiding the FPC6, the bending space of the FPC6 is increased, and the problem of the arch force of the FPC6 when bending the side wall 82 of the surface iron frame 8 is avoided, the size qualification rate of the liquid crystal display screen is improved, and interference is avoided when the client assembles the housing, ensuring smooth assembly of the client and the housing. At the same time, since the top plate 81 located above the FPC6 and the driver IC5 is provided with a bending pressure bone 84 formed by bending, it is ensured that the surface iron frame 8 has sufficient strength to avoid the strength reduction caused by the opening of the notch 83.

[0034] Furthermore, each side dimension of the notch 83 is 0.5 mm to 1 mm larger than each side dimension of the FPC 6 to avoid interference between the notch 83 and the FPC 6 .

[0035] Furthermore, the width of the bending pressure bone 84 is 1 mm to 2 mm. The length of the bending pressure bone 84 is greater than the length of the notch 83 by more than 4 mm. In this embodiment, the single side length of the bending pressure bone 84 is greater than the single side length of the notch 83 by more than 2 mm, that is, the left side of the bending pressure bone 84 is 2 mm longer than the left side of the notch 83, and the right side of the bending pressure bone 84 is 2 mm longer than the right side of the notch 83. This ensures that the surface iron frame 8 has better strength.

[0036] Furthermore, the distance between the lower surface of the bending pressure bone 84 and the upper surfaces of the FPC6 and the driving IC5 is greater than 0.2 mm to avoid the hidden danger of interference between the bending pressure bone 84 and the driving IC5 and the FPC6.

[0037] Furthermore, a protective glue 9 is provided on the upper surface of the lower substrate 2 extending outward, and the protective glue 9 covers the FPC 6 and the driving IC 5 located on the upper surface of the lower substrate 2 to protect the FPC 6 and the driving IC 5 .

[0038] Furthermore, a protrusion 23 is provided on the edge of the upper surface of the lower substrate 2 extending outward, and the upper surface of the protrusion 23 is flush with the upper surface of the upper substrate 3 . The protrusion 23 can limit the flow of the protective glue 9 to prevent the protective glue 9 from overflowing.

[0039] Furthermore, the upper surface of the protective glue 9 is provided with a buffer foam 10, and the buffer foam 10 abuts against the upper surface of the top plate 81. This allows the surface iron frame 8 to be in close contact with the display module 100 to avoid shaking and bumping. More preferably, the buffer foam 10 is provided with an avoidance groove for avoiding the bending compression bone 84.

[0040] 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.

[0041] 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. An anti-static liquid crystal display screen, characterized in that: The invention discloses a polarizing film comprising a lower polarizer, a lower substrate, an upper substrate and an upper polarizer which are sequentially stacked from bottom to top, wherein 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 at the step, an ITO coating is arranged on the upper surface of the upper substrate, a left grounding trace and a right grounding trace are arranged on the upper surface of the lower substrate at the step, and the left grounding trace and the right grounding trace are arranged on both sides of the driving IC respectively, and a left conductive silver paste and a right conductive silver paste are arranged on the upper surface of the upper substrate near the step and the side of the upper substrate, one end of the left conductive silver paste is electrically connected to the ITO coating, the other end of the left conductive silver paste is electrically connected to the left grounding trace, one end of the right conductive silver paste is electrically connected to the ITO coating, the other end of the right conductive silver paste is electrically connected to the right grounding trace, and the left grounding trace and the right grounding trace are both connected to the grounding point of the FPC.

2. The antistatic liquid crystal display screen according to claim 1, characterized in that: The lower polarizer, the lower substrate, the upper substrate and the upper polarizer form a display module, a backlight module is arranged below the lower polarizer, a surface iron frame is arranged above the upper polarizer, the surface iron frame includes a top plate and side walls extending downward from the edge of the top plate, the backlight module and the display module are arranged in a space enclosed by the top plate and the side walls, the side wall close to the FPC side is provided with a notch for avoiding the FPC, and the top plate located above the FPC and the driver IC is provided with a bending pressure bone formed by bending.

3. The antistatic liquid crystal display screen according to claim 2, characterized in that: Each side dimension of the notch is 0.5 mm to 1 mm larger than each side dimension of the FPC.

4. The antistatic liquid crystal display screen according to claim 2, characterized in that: The width of the bent bone compression portion is 1 mm to 2 mm.

5. The antistatic liquid crystal display screen according to claim 2, characterized in that: The length of the bent compression bone is greater than the length of the notch by more than 4 mm.

6. The antistatic liquid crystal display screen according to claim 2, characterized in that: The distance between the lower surface of the bending pressure bone and the upper surfaces of the FPC and the driver IC is greater than 0.2 mm.

7. The antistatic liquid crystal display screen according to claim 2, characterized in that: A protective glue is arranged on the upper surface of the lower substrate extending outward, and the protective glue covers the FPC and the driving IC located on the upper surface of the lower substrate.

8. The antistatic liquid crystal display screen according to claim 7, characterized in that: The edge of the upper surface of the lower substrate extending outward is provided with a protrusion.

9. The antistatic liquid crystal display screen according to claim 8, characterized in that: An upper surface of the protrusion is flush with an upper surface of the upper substrate.

10. The antistatic liquid crystal display screen according to claim 7, characterized in that: The upper surface of the protective glue is provided with cushioning foam.

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